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Patent US189392A successfully refreshed from Google Patents.
US189392A
Expired / Lapsed
US
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Improvement in locks for sliding doors
Assignee: —
•
Filing: —
•
Granted: 1877-04-10
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Expires: 1894-04-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:11
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/08; E05B65/0811; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5173; Y10T70/519; Y10T70/5199; Y10T70/5246; Y10T70/5296; Y10T70/5367
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) | 1880-04-09 | 1880-10-09 | 1881-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1884-04-09 | 1884-10-09 | 1885-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1888-04-09 | 1888-10-09 | 1889-04-10 | $7700.00 | Window Closed / Lapsed |