US2821587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snap-action switch
Assignee: Cherry Corp
•
Filing: 1955-02-02
•
Granted: 1958-01-28
•
Expires: 1975-02-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter L Cherry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:07
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/26; H01H13/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB206944A
Cited
US2328154A
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US2274312A
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US2508040A
Cited
US2582034A
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US2651690A
Cited
US2728826A
Cited
US2758171A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |