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US445440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
thomas baldwin
Assignee: —
•
Filing: —
•
Granted: 1891-01-27
•
Expires: 1908-01-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:41
CPC Classifications
F; F16; F16B; F16B2/00; F16B2/02; F16B2/06; F16B2/065; Y; Y10; Y10T; Y10T403/00; Y10T403/53; Y10T403/535
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) | 1894-01-26 | 1894-07-28 | 1895-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1898-01-26 | 1898-07-28 | 1899-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1902-01-27 | 1902-07-29 | 1903-01-28 | $7700.00 | Window Closed / Lapsed |