Patent US2935877A successfully refreshed from Google Patents.
US2935877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cam operated holding in switch
Assignee: Allis Chalmers Corp
•
Filing: 1957-12-18
•
Granted: 1960-05-10
•
Expires: 1977-12-18
Abstract
No abstract record available.
Inventors
- 👤 William C Sealey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:41
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/32; H01H3/44; H01H9/00; H01H9/0005; H01H9/0027; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18288
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1320257A
Cited
US1912135A
Cited
US2078147A
Cited
US2565649A
Cited
US2741132A
Cited
US2724276A
Cited
GB790739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |