Patent US3436502A successfully refreshed from Google Patents.
US3436502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric pressure-control snap switch
Assignee: Patinvest Patent und Investment AG
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Filing: 1967-02-02
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Granted: 1969-04-01
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Expires: 1987-02-02
Abstract
No abstract record available.
Inventors
- 👤 Ernst M Egli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:19
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/26; H01H35/2607; H01H35/2614; H01H13/00; H01H13/02; H01H13/26; H01H13/28; H01H5/00; H01H5/04; H01H5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |