Patent US2926386A successfully refreshed from Google Patents.
US2926386A
Expired / Lapsed
US
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Manufacture of propellants
Assignee: Phillips Petroleum Co
•
Filing: 1955-03-07
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Granted: 1960-03-01
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Expires: 1975-03-07
Abstract
No abstract record available.
Inventors
- 👤 William M Hutchinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:35
CPC Classifications
B; B29; B29C; B29C45/00; B29C48/00; B29C48/03; B29C48/25; B29C48/36; B29C48/395; B29C48/365; B29C48/50; B29C48/505; B29C48/64; Y; Y10; Y10S; Y10S264/00; Y10S264/78; Y10S425/00; Y10S425/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2359840A
Cited
US2505540A
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US2469342A
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GB655585A
Cited
US2671247A
Cited
US2675583A
Cited
US2627087A
Cited
FR1064777A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |