Patent US2758644A successfully refreshed from Google Patents.
US2758644A
Expired / Lapsed
US
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Control system for slatted roller blinds
Assignee: Individual
•
Filing: 1954-07-13
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Granted: 1956-08-14
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Expires: 1974-07-13
Abstract
No abstract record available.
Inventors
- 👤 Virlouvet Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:49
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/28; E06B9/30; E06B9/303; E06B9/308
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2231778A
Cited
US2604939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |