US2812157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine blade cooling system
Assignee: Motors Liquidation Co
•
Filing: 1951-05-15
•
Granted: 1957-11-05
•
Expires: 1971-05-15
Abstract
No abstract record available.
Inventors
- 👤 William A Turunen
- 👤 Patrick W O'connell
- 👤 Jr De Owen Nichols
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:49
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/08; F01D5/085; F01D5/088
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1938686A
Cited
US2073605A
Cited
CH195736A
Cited
GB592448A
Cited
US2613909A
Cited
US2435990A
Cited
FR943379A
Cited
US2565594A
Cited
GB623841A
Cited
CH271742A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |