US368744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft-key
Assignee: —
•
Filing: —
•
Granted: 1887-08-23
•
Expires: 1904-08-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:39
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/0876; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17761; Y10T403/00; Y10T403/70; Y10T403/7018; Y10T403/7021; Y10T403/7024
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) | 1890-08-22 | 1891-02-21 | 1891-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1894-08-22 | 1895-02-21 | 1895-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1898-08-22 | 1899-02-21 | 1899-08-23 | $7700.00 | Window Closed / Lapsed |