Fiber-reinforced rocket motor insulation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jul 4, 2006
Grant Date -
Aug 12, 2004
app pub date -
Feb 5, 2004
filing date -
Jan 10, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Insulation for a rocket motor is provided, as is a method for insulating a rocket motor. The insulation includes a cured elastomer and vapor-grown carbon fibers dispersed in the cured elastomer. The cured elastomer is preferably formed from a precursor composition comprising an EPDM terpolymer. Generally, the vapor-grown carbon fibers have an internal graphitized tube surrounded by a sheath of vapor-deposited amorphous carbon.
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 | |
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NORTHROP GRUMMAN SYSTEMS CORPORATION | 2980 FAIRVIEW PARK DRIVE FALLS CHURCH VA 22042-4511 |
International Classification(s)

- 2004 Application Filing Year
- F16L Class
- 873 Applications Filed
- 452 Patents Issued To-Date
- 51.78 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Ellertson, John W | Brigham City, UT | 8 | 62 |
# of filed Patents : 8 Total Citations : 62 | |||
Harvey, Albert R | Brigham City, UT | 9 | 60 |
# of filed Patents : 9 Total Citations : 60 |
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Patent Citation Ranking
- 4 Citation Count
- F16L Class
- 1.99 % this patent is cited more than
- 19 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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 |
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Jul 14, 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 30, 2018 | I | Issuance | |
Jan 10, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jan 07, 2016 | P | Published | |
Jun 23, 2015 | F | Filing | |
Jun 22, 2015 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KIM, YUCHUL;KIM, JOONSUK;REEL/FRAME:035883/0016 Owner name: APPLE INC., CALIFORNIA Effective Date: Jun 22, 2015 |

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