Patent US2874958A successfully refreshed from Google Patents.
US2874958A
Expired / Lapsed
US
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Control systems for partitions or the like
Assignee: Individual
•
Filing: 1956-04-03
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Granted: 1959-02-24
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Expires: 1976-04-03
Abstract
No abstract record available.
Inventors
- 👤 Mercier Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:10
CPC Classifications
B; B63; B63B; B63B43/00; B63B43/24; E; E05; E05F; E05F15/00; E05F15/50; E05F11/00; E05F11/02; E05Y; E05Y2900/00; E05Y2900/50; E05Y2900/514; Y; Y10; Y10S; Y10S60/00; Y10S60/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |