Patent US3053709A successfully refreshed from Google Patents.
US3053709A
Expired / Lapsed
US
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Cooling solid propellant compositions during mixing
Assignee: Phillips Petroleum Co
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Filing: 1959-09-08
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Granted: 1962-09-11
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Expires: 1979-09-08
Abstract
No abstract record available.
Inventors
- 👤 Iii Charles H Herty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:31
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0008; C06B21/0025
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
85 words
IN THE PROCESS OF MANUFACUTURING A SOLID PROPELLANT COMPOSITION COMPRISING AN INORGANIC OXIDIZING SALT AND A RUBBER BINDER WHEREIN THE INORGANIC OXIDIZING SALT IS INCORPORATED INTO THE UNCURED RUBBER BINDER AFTER WHICH THE MIXTURE IS EXTRUDED AND CURED, THE IMPROVEMENT COMPRISING ADDING DRY ICE TO THE MIXTURE OF INORGANIC OXIDIZING SALT AND UNCURED RUBBER DURING THE STEP OF INCORPORATING THE INORGANIC OXIDIZING SALT INTO THE RUBBER IN AN AMOUNT SUFFICIENT TO MAINTAIN THE MIXTURE AT A TEMPERATURE BELOW THE PRECURING TEMPERATURE OF THE RUBBER BINDER.
References Cited (Backward Citations)
US2900242A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |