US3437772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact structure for electrical switching device and method of assembly
Assignee: Cutler Hammer Inc
•
Filing: 1966-06-06
•
Granted: 1969-04-08
•
Expires: 1986-06-06
Abstract
No abstract record available.
Inventors
- 👤 Earl T Piber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:08
CPC Classifications
H; H01; H01H; H01H11/00; H01H11/0056; H01H23/00; H01H23/02; H01H23/08; H01H23/12; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3140364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |