Patent US995376A successfully refreshed from Google Patents.
Patent US525400A successfully refreshed from Google Patents.
US525400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric lock
Assignee: —
•
Filing: —
•
Granted: 1894-09-04
•
Expires: 1911-09-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:13
CPC Classifications
G; G07; G07C; G07C9/00; G07C9/00174; G07C9/00658; G07C9/00666; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7051; Y10T70/7062; Y10T70/7068; Y10T70/7085; Y10T70/709
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) | 1897-09-03 | 1898-03-05 | 1898-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1901-09-04 | 1902-03-06 | 1902-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1905-09-04 | 1906-03-06 | 1906-09-05 | $7700.00 | Window Closed / Lapsed |