US251876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permutation-lock
Assignee: —
•
Filing: —
•
Granted: 1882-01-03
•
Expires: 1899-01-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:07
CPC Classifications
E; E05; E05B; E05B37/00; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5757; Y10T70/5765; Y10T70/577; Y10T70/5783; Y10T70/70; Y10T70/7153; Y10T70/735; Y10T70/7367; Y10T70/739; Y10T70/7395; Y10T70/7407; Y10T70/7418; Y10T70/80; Y10T70/8297; Y10T70/8378; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20834; Y10T74/2084
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) | 1885-01-02 | 1885-07-04 | 1886-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1889-01-02 | 1889-07-04 | 1890-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1893-01-02 | 1893-07-04 | 1894-01-03 | $7700.00 | Window Closed / Lapsed |