US2658963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary multiple contact switch
Assignee: TNC US Holdings Inc
•
Filing: 1949-03-01
•
Granted: 1953-11-10
•
Expires: 1969-03-01
Abstract
No abstract record available.
Inventors
- 👤 Krahulec Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:08
CPC Classifications
H; H04; H04H; H04H60/00; H04H60/35; H04H60/38; H04H60/41; H04H60/44; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1579304A
Cited
US1982982A
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CH143497A
Cited
US1822700A
Cited
US2055031A
Cited
US1869648A
Cited
US2135832A
Cited
US2196409A
Cited
US2277899A
Cited
US2520258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |