US3486144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pushbutton switch with feel provided by magnetic attraction
Assignee: Unisys Corp
•
Filing: 1967-08-29
•
Granted: 1969-12-23
•
Expires: 1987-08-29
Abstract
No abstract record available.
Inventors
- 👤 Walter Griffin Paige
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:59
CPC Classifications
H; H01; H01H; H01H36/00; H01H36/0006; H01H36/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3109908A
Cited
US3175060A
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US3222474A
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US3283274A
Cited
US3361999A
Cited
US3223801A
Cited
US3233061A
Cited
US3271708A
Cited
US3292123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |