US2944247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supervisory control system
Assignee: North Electric Co
•
Filing: 1955-03-23
•
Granted: 1960-07-05
•
Expires: 1975-03-23
Abstract
No abstract record available.
Inventors
- 👤 Lemuel R Breese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:25
CPC Classifications
H; H04; H04Q; H04Q9/00; H04Q9/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE17797E
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USRE21284E
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US1814524A
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US2148430A
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US2152010A
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US2336064A
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US2409229A
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US2512038A
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US2677814A
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US2679034A
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US2717986A
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US2698425A
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US2719960A
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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) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |