Patent US189783A successfully refreshed from Google Patents.
Patent US180255A successfully refreshed from Google Patents.
US180255A
Expired / Lapsed
US
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Improvement in latch-locks
Assignee: —
•
Filing: —
•
Granted: 1876-07-25
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Expires: 1893-07-25
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:12
CPC Classifications
E; E05; E05B; E05B27/00; Y; Y10; Y10S; Y10S70/00; Y10S70/29; Y10S70/37; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7588; Y10T70/7593; Y10T70/7599; Y10T70/778; Y10T70/7791; Y10T70/7842; Y10T70/7859; Y10T70/7881; Y10T70/7915; Y10T70/7932; Y10T70/7944
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) | 1879-07-25 | 1880-01-24 | 1880-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1883-07-25 | 1884-01-24 | 1884-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1887-07-25 | 1888-01-24 | 1888-07-25 | $7700.00 | Window Closed / Lapsed |