Patent US2741085A successfully refreshed from Google Patents.
US2741085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device, including fusible member for rocket engine starting control
Assignee: Phillips Petroleum Co
•
Filing: 1952-05-12
•
Granted: 1956-04-10
•
Expires: 1972-05-12
Abstract
No abstract record available.
Inventors
- 👤 Spencer S Prentiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:11
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/44; F02K9/56; F02K9/566; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1797
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1394807A
Cited
US1535240A
Cited
US1630022A
Cited
US1681421A
Cited
US1879186A
Cited
US2402826A
Cited
US2408111A
Cited
US2575070A
Cited
US2528134A
Cited
US2538642A
Cited
US2643511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |