Patent US1798211A successfully refreshed from Google Patents.
US1798211A
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Windmill
Assignee: WILLIAM CROUCH
•
Filing: 1926-04-22
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Granted: 1931-03-31
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Expires: 1946-04-22
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Law
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:06
CPC Classifications
F; F03; F03D; F03D3/00; F03D3/04; F03D3/0436; F03D3/0445; F05; F05B; F05B2240/00; F05B2240/20; F05B2240/21; F05B2240/221; F05B2240/2212; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/74; Y10; Y10S; Y10S415/00; Y10S415/905
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) | 1934-03-30 | 1934-09-29 | 1935-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-03-30 | 1938-09-29 | 1939-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-03-30 | 1942-09-29 | 1943-03-31 | $7700.00 | Window Closed / Lapsed |