Patent US2956402A successfully refreshed from Google Patents.
US2956402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multistage high altitude engine with single combustion stage
Assignee: Garrett Corp
•
Filing: 1955-06-27
•
Granted: 1960-10-18
•
Expires: 1975-06-27
Abstract
No abstract record available.
Inventors
- 👤 Rae Randolph Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:30
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/08; F02K; F02K9/00; F02K9/74; F02K9/78
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US263311A
Cited
US615311A
Cited
US1954823A
Cited
US2091808A
Cited
GB468287A
Cited
GB583146A
Cited
US2455845A
Cited
US2620625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |