US3513043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite solid propellants containing a perfluoroethylene resin,metal and a fluoroelastomer
Assignee: Phillips Petroleum Co
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Filing: 1958-11-04
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Granted: 1970-05-19
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Expires: 1978-11-04
Abstract
No abstract record available.
Inventors
- 👤 Charles H Burnside
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:12
CPC Classifications
F; F42; F42B; F42B15/00; F42B15/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
85 words
A SOLID PROPELLANT COMPOSITION COMPRISING 30 TO 45 WEIGHT PERCENT OF AN INORGANIC OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF THE AMMONIUM, ALKALI METAL, AND ALKALINE EARTH METAL SALTS OF NITRIC, CHLORIC, AND PERCHLORIC ACIDS, 30 TO 40 WEIGHT PERCENT OF POLYTETRAFLUOROETHYLENE RESIN, 13 TO 28 WEIGHT PERCENT OF A COPOLYMER OF VINYLIDENE FLUORIDE AND HEXAFLUOROPROPYLENE, AND 2 TO 14 WEIGHT PERCENT OF A POWDERED MATERIAL SELECTED FROM THE GROUP CONSISTING OF SILICON, BORON AND A METAL HAVING A MOLECULAR WEIGHT UP TO 30.
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) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |