Patent US1400033A successfully refreshed from Google Patents.
US1400033A
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Propeller
Assignee: Westinghouse Electric Corp
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Filing: 1919-02-15
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Granted: 1921-12-13
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Expires: 1939-02-15
Abstract
No abstract record available.
Inventors
- 👤 Dickey Daniel Adam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:09
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/02; B64C11/04; B64C11/06; B64C11/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1924-12-12 | 1925-06-13 | 1925-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-12-12 | 1929-06-13 | 1929-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-12-12 | 1933-06-13 | 1933-12-13 | $7700.00 | Window Closed / Lapsed |