Patent US2986692A successfully refreshed from Google Patents.
US2986692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical control systems
Assignee: Cutler Hammer Inc
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Filing: 1958-07-09
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Granted: 1961-05-30
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Expires: 1978-07-09
Abstract
No abstract record available.
Inventors
- 👤 Paul M Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:18
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2899627A
Cited
US2259118A
Cited
US2315619A
Cited
US2728887A
Cited
US2753506A
Cited
US2859399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |