US2947827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cam-operable twin-switches
Assignee: Clark Controller Co
•
Filing: 1957-11-29
•
Granted: 1960-08-02
•
Expires: 1977-11-29
Abstract
No abstract record available.
Inventors
- 👤 Oswald M Bundy
- 👤 Joseph P Finley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:59
CPC Classifications
H; H01; H01H; H01H19/00; H01H19/54; H01H19/60; H01H19/63; H01H1/00; H01H1/12; H01H1/14; H01H1/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA527908A
Cited
US1783731A
Cited
US1853964A
Cited
US2748208A
Cited
US2785241A
Cited
US2757361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |