US2503213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and control analyzer
Assignee: Schneider Electric Systems USA Inc
•
Filing: 1946-12-21
•
Granted: 1950-04-04
•
Expires: 1966-12-21
Abstract
No abstract record available.
Inventors
- 👤 George A Philbrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:08
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/013
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2040086A
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US2159181A
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US2067645A
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US2165182A
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US2373504A
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US2423754A
Cited
US2431696A
Cited
US2420891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-03 | 1953-10-03 | 1954-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-03 | 1957-10-03 | 1958-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-03 | 1961-10-03 | 1962-04-04 | $7700.00 | Window Closed / Lapsed |