US3443792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-turbine rotors
Assignee: Plessey Overseas Ltd
•
Filing: 1967-09-26
•
Granted: 1969-05-13
•
Expires: 1987-09-26
Abstract
No abstract record available.
Inventors
- 👤 Norman Moss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:03
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/28; F01D5/284; F01D5/14; F01D5/18; F01D5/187
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US649014A
Cited
GB367265A
Cited
DE724793C
Cited
CH238005A
Cited
US2479057A
Cited
US3163397A
Cited
US3219314A
Cited
US3271004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |