Patent US3971191A successfully refreshed from Google Patents.
Patent US923698A successfully refreshed from Google Patents.
US923698A
Expired / Lapsed
US
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Wind-power machine.
Assignee: Individual
•
Filing: 1908-06-16
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Granted: 1909-06-01
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Expires: 1928-06-16
Abstract
No abstract record available.
Inventors
- 👤 Jonathan Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:47
CPC Classifications
F; F03; F03D; F03D3/00; F03D3/06; F03D3/061; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/74
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) | 1912-05-31 | 1912-11-30 | 1913-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-05-31 | 1916-11-30 | 1917-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-05-31 | 1920-11-30 | 1921-06-01 | $7700.00 | Window Closed / Lapsed |