US2657902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine rotor for turbojet engines
Assignee: Packard Motor Car Co
•
Filing: 1947-12-17
•
Granted: 1953-11-03
•
Expires: 1967-12-17
Abstract
No abstract record available.
Inventors
- 👤 Robert M Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:04
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/34; F01D5/02; F01D5/021; F01D5/08; F01D5/085; F01D5/087; F01D5/30; F01D5/3061; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4932
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1229490A
Cited
US1470506A
Cited
US1657192A
Cited
DE573481C
Cited
US2038670A
Cited
GB512301A
Cited
US2143466A
Cited
US2264877A
Cited
CH218976A
Cited
US2354304A
Cited
US2432185A
Cited
US2393963A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |