US2773667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine rotor sealing ring
Assignee: Motors Liquidation Co
•
Filing: 1950-02-08
•
Granted: 1956-12-11
•
Expires: 1970-02-08
Abstract
No abstract record available.
Inventors
- 👤 John B Wheatley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:38
CPC Classifications
F; F01; F01D; F01D11/00; F01D11/001; F01D11/02; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1680737A
Cited
US2241782A
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GB543985A
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US2427244A
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US2452782A
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GB595643A
Cited
US2497151A
Cited
US2628067A
Cited
US2488867A
Cited
GB612097A
Cited
US2547934A
Cited
FR978608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |