US3465208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric level-responsive circuits
Assignee: A Reyrolle and Co Ltd
•
Filing: 1966-04-22
•
Granted: 1969-09-02
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Expires: 1986-04-22
Abstract
No abstract record available.
Inventors
- 👤 John Brian Patrickson
- 👤 Victor Stanley Davey
- 👤 Leonhard Martin Wedepohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:43
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/12; H01H71/24; H01H71/2445; H02; H02H; H02H1/00; H02H1/0038; H02H1/0053; H02H3/00; H02H3/02; H02H3/06; H02H3/066; H02H3/08; H02H3/093; H02H3/20; H02H3/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2504827A
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US3023345A
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US3197677A
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US3300689A
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US3340435A
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US3341748A
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US3337771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |