US2529723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for measuring and comparing functions
Assignee: UNION D ELECTRICITE SOC
•
Filing: 1945-04-05
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Granted: 1950-11-14
•
Expires: 1965-04-05
Abstract
No abstract record available.
Inventors
- 👤 Chevallier Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:16
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/26; H02H3/28; H02H3/30; H02H3/302
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1200796A
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US1345066A
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US2093626A
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US2281995A
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US2256078A
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US2381527A
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US2357932A
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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) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |