Patent US2949352A successfully refreshed from Google Patents.
US2949352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propellant composition
Assignee: North American Aviation Corp
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Filing: 1956-10-01
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Granted: 1960-08-16
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Expires: 1976-10-01
Abstract
No abstract record available.
Inventors
- 👤 Frank B Cramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:26
CPC Classifications
C; C06; C06B; C06B45/00; C06B45/04; C06B45/06; C06B45/10; Y; Y10; Y10S; Y10S149/00; Y10S149/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A COMPISITION CONSISTING ESSENTIALLY OF (1) FROM ABOUT 50 TO ABOUT 10 WEIGHT PERCENT OF A SILCONE RUBBER AND (2) FROM ABOUT 50 TO ABOUT 90 WEIGHT PERCENT AN INORGANIC PERCHLORATE INTIMATELY DISTRIBUTED THROUGHOUT SAID POLYMERIZED COMPOSITION.
Claim 2
Dependent Claim
37 words
A COMPISITION CONSISTING ESSENTIALLY OF (1) FROM ABOUT 50 TO ABOUT 10 WEIGHT PERCENT OF A SILCONE RUBBER AND (2) FROM ABOUT 50 TO ABOUT 90 WEIGHT PERCENT AN INORGANIC PERCHLORATE INTIMATELY DISTRIBUTED THROUGHOUT SAID POLYMERIZED COMPOSITION.
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) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |