US2744977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric signalizing pressure sensitive indicator
Assignee: ATELIERS SEIGNOL
•
Filing: 1951-01-09
•
Granted: 1956-05-08
•
Expires: 1971-01-09
Abstract
No abstract record available.
Inventors
- 👤 Lombard Jean
- 👤 Mazoyer Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:23
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/26; H01H35/2607; H01H35/34; H01H35/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US708155A
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US841186A
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US1172199A
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US1231561A
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US1573371A
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US1951245A
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US2069222A
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US2332301A
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US2321631A
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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) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |