Patent US3316718A successfully refreshed from Google Patents.
US3316718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Honeycomb structured propellant for rocket motors
Assignee: Lockheed Martin Corp
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Filing: 1965-01-13
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Granted: 1967-05-02
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Expires: 1985-01-13
Abstract
No abstract record available.
Inventors
- 👤 Wells A Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:38
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/08; F02K9/10; F02K9/16; F05; F05D; F05D2250/00; F05D2250/20; F05D2250/28; F05D2250/283; F05D2250/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A ROCKET MOTOR COMPRISING: A COMBUSTION CHAMBER; AN END-BURNING SOLID PROPELLANT GRAIN IN SAID CHAMBER; A CELLULAR STRUCTURE IN THE FORM OF A HONEYCOMB FOR SUPPORTING AND REINFORCING THE GRAIN, SAID STRUCTURE BEING SO DISPOSED IN THE GRAIN THAT THE CELL AXES ARE PERPENDICULAR TO THE GENERAL DIRECTION OF BURNING OF SAID GRAIN.
Claim 2
Dependent Claim
53 words
A ROCKET MOTOR COMPRISING: A COMBUSTION CHAMBER; AN END-BURNING SOLID PROPELLANT GRAIN IN SAID CHAMBER; A CELLULAR STRUCTURE IN THE FORM OF A HONEYCOMB FOR SUPPORTING AND REINFORCING THE GRAIN, SAID STRUCTURE BEING SO DISPOSED IN THE GRAIN THAT THE CELL AXES ARE PERPENDICULAR TO THE GENERAL DIRECTION OF BURNING OF SAID GRAIN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |