US2935581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single throw switch
Assignee: Berg Airlectro Products Co
•
Filing: 1957-03-20
•
Granted: 1960-05-03
•
Expires: 1977-03-20
Abstract
No abstract record available.
Inventors
- 👤 Harold L Dobrikin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:40
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1684530A
Cited
GB330388A
Cited
US1918880A
Cited
GB492293A
Cited
US2153716A
Cited
US2502326A
Cited
US2794879A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |