Patent US543903A successfully refreshed from Google Patents.
US543903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for overcoming dead-centers
Assignee: —
•
Filing: —
•
Granted: 1895-08-06
•
Expires: 1912-08-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:07
CPC Classifications
F; F16; F16H; F16H21/00; F16H21/10; F16H21/16; F16H21/18; F16H21/38; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32861; Y10T403/32918; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18144; Y10T74/20; Y10T74/20006; Y10T74/21; Y10T74/2142; Y10T74/2144; Y10T74/2146
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) | 1898-08-05 | 1899-02-04 | 1899-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1902-08-06 | 1903-02-05 | 1903-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1906-08-06 | 1907-02-05 | 1907-08-07 | $7700.00 | Window Closed / Lapsed |