Patent US2766580A successfully refreshed from Google Patents.
US2766580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine apparatus
Assignee: Westinghouse Electric Corp
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Filing: 1952-07-22
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Granted: 1956-10-16
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Expires: 1972-07-22
Abstract
No abstract record available.
Inventors
- 👤 Wayne W Buerer
- 👤 Robert A Neal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:19
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/06; F02K1/15; F02K1/16; F02K3/00
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |