Internal structure of a primary exhaust duct having a separator of which the geometry varies depending on the temperature
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 6, 2022
Grant Date -
Aug 26, 2021
app pub date -
Feb 22, 2021
filing date -
Feb 24, 2020
priority date (Note) -
In Force
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Abstract
An internal structure of a primary exhaust duct of a turbomachine, which has a primary wall allowing air to pass through orifices and forming an internal surface of the primary exhaust duct, an interior skin arranged inside the primary wall, and at least one separator of which a first edge region is attached to the interior skin and which has two geometries. A change from the first geometry to the second takes place when the temperature of the separator exceeds a first temperature, and the change from the second to the first takes place when the temperature of the separator drops below a second temperature. The coefficient of expansion of the separator is greater than that of the interior skin. The variation in the geometry of the separators depending on the temperature of the engine eases assembly at ambient temperature due to the compression of the separators.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
AIRBUS OPERATIONS SAS | 316 ROUTE DE BAYONNE TOULOUSE 31060 |
International Classification(s)

- 2021 Application Filing Year
- F02K Class
- 347 Applications Filed
- 209 Patents Issued To-Date
- 60.24 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Andre, Sandrine | Toulouse, FR | 4 | 9 |
# of filed Patents : 4 Total Citations : 9 | |||
Ferreira, Julien | Toulouse, FR | 6 | 0 |
# of filed Patents : 6 Total Citations : 0 | |||
Kilkenny, Michael | Toulouse, FR | 3 | 2 |
# of filed Patents : 3 Total Citations : 2 | |||
Trocellier, Vincent | Toulouse, FR | 2 | 0 |
# of filed Patents : 2 Total Citations : 0 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 0 Citation Count
- F02K Class
- 0 % this patent is cited more than
- 3 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jun 6, 2026 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jun 6, 2030 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 6, 2034 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Jun 13, 2023 | P | Publication | |
May 24, 2023 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Dec 20, 2022 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: ADVISORY ACTION MAILED |
Nov 04, 2022 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: RESPONSE AFTER FINAL ACTION FORWARDED TO EXAMINER |
Aug 02, 2022 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: FINAL REJECTION MAILED |
Apr 23, 2022 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER |
Jan 20, 2022 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: NON FINAL ACTION MAILED |
Oct 05, 2021 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER |
Aug 19, 2021 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: NON FINAL ACTION MAILED |
Jun 06, 2021 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
Nov 05, 2020 | P | Published | |
Aug 13, 2020 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: APPLICATION DISPATCHED FROM PREEXAM, NOT YET DOCKETED |
Apr 29, 2020 | FEPP | FEE PAYMENT PROCEDURE | free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Dec 04, 2019 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KONISHI, TAKAYOSHI;HIRAOKA, TOSHIO;KATO, TAKASHI;AND OTHERS;REEL/FRAME:052524/0511 Owner name: UNICHARM CORPORATION, JAPAN Effective Date: Dec 04, 2019 |
Jul 26, 2018 | F | Filing | |
Nov 01, 2017 | PD | Priority Date |

Matter Detail

Renewals Detail
