US452546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wind apparatus for generating electricity and charging secondary batteries
Assignee: —
•
Filing: —
•
Granted: 1891-05-19
•
Expires: 1908-05-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:03
CPC Classifications
F; F03; F03D; F03D9/00; F03D9/20; F03D9/25; F03D13/00; F03D13/20; F03D80/00; F03D80/70; F03D9/10; F03D9/11; F05; F05B; F05B2270/00; F05B2270/30; F05B2270/327; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72; Y02E10/728; Y02E70/00; Y02E70/30
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) | 1894-05-18 | 1894-11-17 | 1895-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1898-05-18 | 1898-11-17 | 1899-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1902-05-19 | 1902-11-18 | 1903-05-20 | $7700.00 | Window Closed / Lapsed |