Patent US2794499A successfully refreshed from Google Patents.
US2794499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Venetian blind and mechanisms useful therein
Assignee: Individual
•
Filing: 1954-11-08
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Granted: 1957-06-04
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Expires: 1974-11-08
Abstract
No abstract record available.
Inventors
- 👤 Charles B White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:21
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/28; E06B9/30; E06B9/303; E06B9/305; E06B2009/2423; E06B2009/2447; E06B2009/2452
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2388000A
Cited
US2706522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |