Patent US2656677A successfully refreshed from Google Patents.
US2656677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion gas and steam power generating unit
Assignee: Individual
•
Filing: 1951-07-13
•
Granted: 1953-10-27
•
Expires: 1971-07-13
Abstract
No abstract record available.
Inventors
- 👤 Adolphe C Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:28
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/12; F02C7/14; F02C7/141; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US872806A
Cited
FR346330A
Cited
US864821A
Cited
CH36433A
Cited
US1154131A
Cited
FR524275A
Cited
US2078956A
Cited
US2140085A
Cited
US2221185A
Cited
US2469678A
Cited
US2531761A
Cited
US2447696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |