Patent US132936A successfully refreshed from Google Patents.
US132936A
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Improvement in permutation locks
Assignee: —
•
Filing: —
•
Granted: 1872-11-12
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Expires: 1889-11-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:04
CPC Classifications
E; E05; E05B; E05B37/00; E05B37/08; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5296; Y10T70/5319; Y10T70/5336; Y10T70/70; Y10T70/7153; Y10T70/7181; Y10T70/7198; Y10T70/7237; Y10T70/7243; Y10T70/7249; Y10T70/7254; Y10T70/7322; Y10T70/7345
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) | 1875-11-12 | 1876-05-13 | 1876-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1879-11-12 | 1880-05-13 | 1880-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1883-11-12 | 1884-05-13 | 1884-11-12 | $7700.00 | Window Closed / Lapsed |