Patent US1942618A successfully refreshed from Google Patents.
US446789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Robert l
Assignee: —
•
Filing: —
•
Granted: 1891-02-17
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Expires: 1908-02-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:50
CPC Classifications
E; E05; E05B; E05B63/00; E05B63/14; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0834; Y10T292/0836; Y10T292/0839; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5248; Y10T70/527; Y10T70/5279; Y10T70/70; Y10T70/7441; Y10T70/778; Y10T70/7791; Y10T70/7842; Y10T70/787; Y10T70/7876
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) | 1894-02-16 | 1894-08-18 | 1895-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1898-02-16 | 1898-08-18 | 1899-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1902-02-17 | 1902-08-19 | 1903-02-18 | $7700.00 | Window Closed / Lapsed |