US2745486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Venetian blind construction
Assignee: LORENTZEN HARDWARE Manufacturing CORP
•
Filing: 1951-07-24
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Granted: 1956-05-15
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Expires: 1971-07-24
Abstract
No abstract record available.
Inventors
- 👤 Nelson Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:57
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/28; E06B9/30; E06B9/32; E06B9/323
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US686052A
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US800052A
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US834685A
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GB483589A
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US2267160A
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US2455135A
Cited
US2629434A
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US2618329A
Cited
US2551787A
Cited
US2663367A
Cited
US2627917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |