US641890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric foot-battery.
Assignee: Individual
•
Filing: 1899-11-06
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Granted: 1900-01-23
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Expires: 1919-11-06
Abstract
No abstract record available.
Inventors
- 👤 David W Prosser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:35
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/0404; A61N1/0472; A61N1/0484; A43; A43B; A43B3/00; A43B3/34; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2151
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) | 1903-01-23 | 1903-07-25 | 1904-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-01-23 | 1907-07-25 | 1908-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-01-23 | 1911-07-25 | 1912-01-24 | $7700.00 | Window Closed / Lapsed |