Slipper retainer for hydraulic unit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 9, 2018
Issued Date -
N/A
app pub date -
Jan 16, 2015
filing date -
Jan 16, 2015
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
A slipper retainer of a hydraulic unit having a circular body having a back surface and an outer edge, the circular body defining a diameter of about 2.240 inches (5.629 cm), a central aperture through a center of the circular body, the circular body having a curved surface defining an edge of the central aperture, wherein the curved surface is defined by a sphere that is centered at a point located a distance of about 0.209 inches (0.531 cm) from the back surface of the body, and a plurality of slipper apertures located between the curved surface of the circular body and the outer edge of the circular body, wherein each slipper aperture of the plurality of slipper apertures has a diameter of about 0.464 inches (1.179 cm).
First Claim
all claims..Other Claims data not available
Family
- No Family data available.
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
HAMILTON SUNDSTRAND CORPORATION | 2730 WEST TYVOLA ROAD FOUR COLISEUM CENTRE CHARLOTTE NC 28217 |
International Classification(s)

- 2015 Application Filing Year
- F04B Class
- 1130 Applications Filed
- 894 Patents Issued To-Date
- 79.12 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Campbell, Kris H | Poplar Grove, US | 44 | 274 |
# of filed Patents : 44 Total Citations : 274 | |||
Lemmers,, Jr Glenn C | Loves Park, US | 154 | 757 |
# of filed Patents : 154 Total Citations : 757 | |||
Smith, Doren C | Rockford, US | 19 | 35 |
# of filed Patents : 19 Total Citations : 35 |
Cited Art Landscape
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Patent Citation Ranking
- 0 Citation Count
- F04B Class
- 0 % this patent is cited more than
- 7 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 9, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 9, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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 23, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Jan 10, 2018 | PD | Priority Date | |
Jan 09, 2018 | I | Issuance | |
Dec 20, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jul 21, 2016 | P | Published | |
Jan 16, 2015 | F | Filing | |
Jan 14, 2015 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CAMPBELL, KRIS H.;LEMMERS, GLENN C., JR.;SMITH, DOREN C.;REEL/FRAME:034733/0637 Owner name: HAMILTON SUNDSTRAND CORPORATION, NORTH CAROLINA Effective Date: Jan 14, 2015 |

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