US3397836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible vane and variable vane cascades
Assignee: Motors Liquidation Co
•
Filing: 1967-01-03
•
Granted: 1968-08-20
•
Expires: 1987-01-03
Abstract
No abstract record available.
Inventors
- 👤 William C Badger
- 👤 George W Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:24
CPC Classifications
F; F01; F01D; F01D17/00; F01D17/10; F01D17/12; F01D17/14; F01D17/16; F01D17/162; F01D5/00; F01D5/12; F01D5/14; F01D5/148; F04; F04D; F04D29/00; F04D29/40; F04D29/52; F04D29/54; F04D29/56; F04D29/563
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1544288A
Cited
GB545587A
Cited
US2337861A
Cited
US2699598A
Cited
FR1144946A
Cited
US3237918A
Cited
GB1010990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |