US3463998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overvoltage control
Assignee: ELECTRIC MACHINERY INDUSTRIAL CONTROLS Corp A DE CORP
•
Filing: 1966-12-27
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Granted: 1969-08-26
•
Expires: 1986-12-27
Abstract
No abstract record available.
Inventors
- 👤 Forest D Smith
- 👤 Derrick N Alcock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:46
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/20; H02H7/00; H02H7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735039A
Cited
US2677076A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-25 | 1973-02-24 | 1973-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-25 | 1977-02-24 | 1977-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-25 | 1981-02-24 | 1981-08-26 | $7700.00 | Window Closed / Lapsed |