US2844676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination snap action push-pull switch and variable resistor
Assignee: CHICAGO TELEPHONE SUPPLY Corp
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Filing: 1956-07-30
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Granted: 1958-07-22
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Expires: 1976-07-30
Abstract
No abstract record available.
Inventors
- 👤 Wayne A Barden
- 👤 Donald A Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:46
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/32; H01C10/36; H01C10/363; H01H; H01H15/00; H01H15/02; H01H15/06; H01H15/16; H01H15/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA464406A
Cited
US1501148A
Cited
US2015425A
Cited
US1991113A
Cited
FR814209A
Cited
DE687420C
Cited
GB500522A
Cited
DE703179C
Cited
US2596893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |