Radiation shielded enclosure for spent nuclear fuel cask
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
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Jan 28, 2025
Grant Date -
Feb 29, 2024
app pub date -
Sep 25, 2023
filing date -
Sep 25, 2023
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
A containment enclosure for shielding an outer cask containing an inner canister loaded with nuclear waste such as spent fuel rods. The enclosure includes a lower base portion at least partially embedded in a concrete pad and an upper radiation shielding portion defined by a shield jacket coupled to and supported by the lower base portion at a circumferential joint. Cavities of the base and shielding portions collectively define a contiguous containment space for the cask. A portion of the cask resides in each of the base and shielding portions which completely enclose and shield the cask to minimize radiation dosage of personnel in the environment surrounding the cask. The cask is cooled by a natural convectively-driven ambient cooling air ventilation system including air inlets at the circumferential joint of the enclosure. The concrete pad may be part of a spent nuclear fuel storage installation comprising plural cask containment enclosures.
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 | |
---|---|---|
HOLTEC INTERNATIONAL | ONE HOLTEC BOULEVARD CAMDEN NJ 08104 |
International Classification(s)

- 2023 Application Filing Year
- G21F Class
- 85 Applications Filed
- 20 Patents Issued To-Date
- 23.53 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Singh, Krishna P | Jupiter, US | 264 | 2861 |
# of filed Patents : 264 Total Citations : 2861 |
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Patent Citation Ranking
- 0 Citation Count
- G21F Class
- 0 % this patent is cited more than
- < 1 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jul 28, 2028 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 28, 2032 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 28, 2036 |
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 |
---|---|---|---|
Jan 28, 2025 | P | Publication | |
Jan 08, 2025 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Dec 20, 2024 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: PUBLICATIONS -- ISSUE FEE PAYMENT VERIFIED |
Oct 09, 2024 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS |
Jul 30, 2024 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: FINAL REJECTION MAILED |
Apr 23, 2024 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: NON FINAL ACTION MAILED |
Feb 29, 2024 | P | Published | |
Nov 23, 2023 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
Sep 25, 2023 | F | Filing | |
Sep 25, 2023 | FEPP | FEE PAYMENT PROCEDURE | free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Aug 22, 2019 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SINGH, KRISHNA P.;REEL/FRAME:065010/0133 Owner name: HOLTEC INTERNATIONAL, NEW JERSEY Effective Date: Aug 22, 2019 |

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