Patent US3531934A successfully refreshed from Google Patents.
US3531934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine power plant
Assignee: CHARLES DAVID HOPE GILL
•
Filing: 1968-10-28
•
Granted: 1970-10-06
•
Expires: 1988-10-28
Abstract
No abstract record available.
Inventors
- 👤 Charles David Hope-Gill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:01
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/005; F02; F02C; F02C3/00; F02C3/04; F02C3/36; F02C7/00; F02C7/08; F02C7/10; F02C7/105; F02C7/12; F02C7/125
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1982664A
Cited
US2403388A
Cited
US2626502A
Cited
US2660858A
Cited
US2845777A
Cited
US2748564A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |