US2741478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control systems for partitions or the like
Assignee: Individual
•
Filing: 1951-09-06
•
Granted: 1956-04-10
•
Expires: 1971-09-06
Abstract
No abstract record available.
Inventors
- 👤 Mercier Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:01
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; B; B63; B63B; B63B43/00; B63B43/24; B63B43/26; B63B43/30; Y; Y10; Y10S; Y10S60/00; Y10S60/903
Claims Analysis
Total Claims: 0
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US2276338A
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US2321079A
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US2426695A
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US2485252A
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US2586906A
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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) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |