Patent US2575808A successfully refreshed from Google Patents.
US2575808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact mounting
Assignee: Fansteel Inc
•
Filing: 1946-06-17
•
Granted: 1951-11-20
•
Expires: 1966-06-17
Abstract
No abstract record available.
Inventors
- 👤 Halverson Gilbert
- 👤 John D Kleis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:47
CPC Classifications
H; H01; H01H; H01H11/00; H01H11/04; H01H11/041; H01H11/045; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/929; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204; Y10T29/49208; Y10T29/4921; Y10T29/49211; Y10T29/49764; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/1284; Y10T428/12861; Y10T428/12937; Y10T428/12951; Y10T428/12972
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1089907A
Cited
US1614501A
Cited
US1657053A
Cited
US2281446A
Cited
US2333622A
Cited
US2427727A
Cited
US2387903A
Cited
US2464591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |