Patent US309722A successfully refreshed from Google Patents.
US309722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical movement
Assignee: —
•
Filing: —
•
Granted: 1884-12-23
•
Expires: 1901-12-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:37
CPC Classifications
F; F16; F16H; F16H35/00; F16H35/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19555
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1887-12-23 | 1888-06-23 | 1888-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1891-12-23 | 1892-06-23 | 1892-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1895-12-23 | 1896-06-23 | 1896-12-23 | $7700.00 | Window Closed / Lapsed |