US2977447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch and actuator assembly
Assignee: Haydon Switch Inc
•
Filing: 1957-10-23
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Granted: 1961-03-28
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Expires: 1977-10-23
Abstract
No abstract record available.
Inventors
- 👤 Sr Theodore Y Korsgren
- 👤 Jr Theodore Y Korsgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:25
CPC Classifications
H; H01; H01H; H01H21/00; H01H21/02; H01H21/04; H01H21/08; H01H21/085; H01H19/00; H01H19/54; H01H19/60; H01H19/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2092085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |