Patent US550424A successfully refreshed from Google Patents.
US550424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined latch and lock
Assignee: —
•
Filing: —
•
Granted: 1895-11-26
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Expires: 1912-11-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:27
CPC Classifications
E; E05; E05B; E05B55/00; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0977; Y10T292/0982; Y10T292/0989; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/55
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) | 1898-11-25 | 1899-05-27 | 1899-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1902-11-26 | 1903-05-28 | 1903-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1906-11-26 | 1907-05-28 | 1907-11-27 | $7700.00 | Window Closed / Lapsed |