US36207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in door-latches
Assignee: —
•
Filing: —
•
Granted: 1862-08-19
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Expires: 1879-08-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:12
CPC Classifications
E; E05; E05F; E05F11/00; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1034; Y10T292/1043; Y10T292/1063; Y10T292/1064; Y10T292/1072; Y10T292/1075; Y10T292/1083; Y10T292/1092
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) | 1865-08-18 | 1866-02-17 | 1866-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1869-08-18 | 1870-02-17 | 1870-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1873-08-18 | 1874-02-17 | 1874-08-19 | $7700.00 | Window Closed / Lapsed |