Patent US2993769A successfully refreshed from Google Patents.
US2993769A
Expired / Lapsed
US
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Solid propellant compositions
Assignee: Phillips Petroleum Co
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Filing: 1958-03-14
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Granted: 1961-07-25
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Expires: 1978-03-14
Abstract
No abstract record available.
Inventors
- 👤 Charles C Bice
- 👤 William B Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:38
CPC Classifications
C; C06; C06B; C06B45/00; C06B45/04; C06B45/06; C06B45/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
A SOLID PROPELLANT COMPOSITION COMPRISING: FROM 75 TO 95 WEIGHT PERCENT OF A SOLID INORGANIC OXIDIZING SALT AS AN OXIDANT COMPONENT, AND FROM 5 TO 25 WEIGHT PERCENT OF A BINDER COMPONENT COMAPRISED OF A MIXTURE PERCENT OF A BINDER COMPONENT COMPRISED OF A MIXTURE OF (1) A PETROLEUM PITCH, CHARACTERIZED BY A HIGH AROMATICS CONTENT AND ESSENTIALLY NO CONTENT OF NAPHTHENES, MATICS CONTENT AND ESSENTIALLY NO CONTENT OF NAPTHENES, HAVING A SOFTENING POINT WHICH THE RANGE OF 190 TO 250*F. HAVING A SOFTENING POINT WITHIN THE RANGE OF 190 TO 250*F. AND A PENETRATION WITHIN THE RANGE OF 0 TO 5 AT 115*F., SAID PITCH HAVING BEEN PREPARED BY VACUUM DISTILLATION OF A CRACKED PETROLEUM RESIDUAL OIL AND (2) A RUBBERY POLYMER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER, POLYBUTADIENE, POLYISOBUTYLENE, POLYISOPRENE, COPOLYMERS OF ISOBUTYLENE AND ISOPRENE, COPOLYMERS OF CONJUGATED DIENES CONTAINING FROM 4 TO 10 CARBON ATOMS PER MOLECULE WITH STYRENE, AND COPOLYMERS OF CONJUGATED DIENES CONTAINING FROM 4 TO 10 CARBON ATOMS PER MOLECULE WITH A
Claim 2
Dependent Claim
170 words
A SOLID PROPELLANT COMPOSITION COMPRISING: FROM 75 TO 95 WEIGHT PERCENT OF A SOLID INORGANIC OXIDIZING SALT AS AN OXIDANT COMPONENT, AND FROM 5 TO 25 WEIGHT PERCENT OF A BINDER COMPONENT COMAPRISED OF A MIXTURE PERCENT OF A BINDER COMPONENT COMPRISED OF A MIXTURE OF (1) A PETROLEUM PITCH, CHARACTERIZED BY A HIGH AROMATICS CONTENT AND ESSENTIALLY NO CONTENT OF NAPHTHENES, MATICS CONTENT AND ESSENTIALLY NO CONTENT OF NAPTHENES, HAVING A SOFTENING POINT WHICH THE RANGE OF 190 TO 250*F. HAVING A SOFTENING POINT WITHIN THE RANGE OF 190 TO 250*F. AND A PENETRATION WITHIN THE RANGE OF 0 TO 5 AT 115*F., SAID PITCH HAVING BEEN PREPARED BY VACUUM DISTILLATION OF A CRACKED PETROLEUM RESIDUAL OIL AND (2) A RUBBERY POLYMER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER, POLYBUTADIENE, POLYISOBUTYLENE, POLYISOPRENE, COPOLYMERS OF ISOBUTYLENE AND ISOPRENE, COPOLYMERS OF CONJUGATED DIENES CONTAINING FROM 4 TO 10 CARBON ATOMS PER MOLECULE WITH STYRENE, AND COPOLYMERS OF CONJUGATED DIENES CONTAINING FROM 4 TO 10 CARBON ATOMS PER MOLECULE WITH A
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) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |