US452738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch
Assignee: —
•
Filing: —
•
Granted: 1891-05-19
•
Expires: 1908-05-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:18
CPC Classifications
E; E05; E05C; E05C1/00; E05C1/08; E05C1/12; E05C1/14; Y; Y10; Y10S; Y10S292/00; Y10S292/37; Y10S292/49; Y10S70/00; Y10S70/35; Y10S70/77; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1051; Y10T292/1052; Y10T292/1055; Y10T292/106; Y10T292/54; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/5394; Y10T70/5487; Y10T70/80; Y10T70/8838; Y10T70/8919
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) | 1894-05-18 | 1894-11-17 | 1895-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1898-05-18 | 1898-11-17 | 1899-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1902-05-19 | 1902-11-18 | 1903-05-20 | $7700.00 | Window Closed / Lapsed |