US148274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in locks for doors
Assignee: —
•
Filing: —
•
Granted: 1874-03-03
•
Expires: 1891-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:47
CPC Classifications
E; E05; E05B; E05B63/00; E05B63/0017; Y; Y10; Y10S; Y10S70/00; Y10S70/39; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5296; Y10T70/5319; Y10T70/5341; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7588; Y10T70/7593; Y10T70/7599; Y10T70/7667; Y10T70/7706; Y10T70/7712
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) | 1877-03-02 | 1877-09-01 | 1878-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1881-03-02 | 1881-09-01 | 1882-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1885-03-02 | 1885-09-01 | 1886-03-03 | $7700.00 | Window Closed / Lapsed |