Patent US685685A successfully refreshed from Google Patents.
US685685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power-generator for telephones.
Assignee: Individual
•
Filing: 1899-07-07
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Granted: 1901-10-29
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Expires: 1919-07-07
Abstract
No abstract record available.
Inventors
- 👤 Ernest Krahenbuhl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:33
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/18; H02K7/1807; H02K7/1853; F; F21; F21L; F21L13/00; F21L13/06; F21L13/08
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) | 1904-10-28 | 1905-04-29 | 1905-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-10-28 | 1909-04-29 | 1909-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-10-28 | 1913-04-29 | 1913-10-29 | $7700.00 | Window Closed / Lapsed |