Patent US2934892A successfully refreshed from Google Patents.
US2934892A
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US
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Variable area propulsion nozzle
Assignee: Westinghouse Electric Corp
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Filing: 1957-01-31
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Granted: 1960-05-03
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Expires: 1977-01-31
Abstract
No abstract record available.
Inventors
- 👤 Clifford F Hurlbert
- 👤 Cyrus F Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:01
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/06; F02K1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |