US2984975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil pump drives for propeller-gas turbine engine installations
Assignee: Bristol Siddeley Engines Ltd
•
Filing: 1956-06-18
•
Granted: 1961-05-23
•
Expires: 1976-06-18
Abstract
No abstract record available.
Inventors
- 👤 Rodgers Harry Frederick
- 👤 Harvey Ernest Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:57
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
CA460242A
Cited
FR753517A
Cited
US1996579A
Cited
US2054802A
Cited
US2149785A
Cited
US2641324A
Cited
US2538299A
Cited
US2619797A
Cited
US2742760A
Cited
US2785848A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |