Patent US3193640A successfully refreshed from Google Patents.
US3193640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air stream actuated limit switch
Assignee: Individual
•
Filing: 1962-04-16
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Granted: 1965-07-06
•
Expires: 1982-04-16
Abstract
No abstract record available.
Inventors
- 👤 Mineck Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:57
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1968648A
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US2240595A
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US2180896A
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US2348950A
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US2526315A
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US2631023A
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US2761494A
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US2787129A
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US2819845A
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US2895308A
Cited
US2981195A
Cited
US3121314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |