US3048820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supervisory control apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1957-07-31
•
Granted: 1962-08-07
•
Expires: 1977-07-31
Abstract
No abstract record available.
Inventors
- 👤 Willard A Derr
- 👤 William F Cruess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:17
CPC Classifications
G; G08; G08B; G08B26/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1983513A
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US2409696A
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US2424571A
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US2417376A
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US2444243A
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US2658188A
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US2616959A
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US2629088A
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US2901728A
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US2942238A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |