US2951677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine rotor construction
Assignee: Curtiss Wright Corp
•
Filing: 1956-03-12
•
Granted: 1960-09-06
•
Expires: 1976-03-12
Abstract
No abstract record available.
Inventors
- 👤 Werner E Howald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:19
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/06; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR980131A
Cited
CA531730A
Cited
US874993A
Cited
US1362405A
Cited
US2327839A
Cited
US2648519A
Cited
US2662685A
Cited
FR1057171A
Cited
US2869820A
Cited
US2803397A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |