US2673608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Venetian blind head bar construction and fitting
Assignee: LORENTZEN HARDWARE Manufacturing CORP
•
Filing: 1952-12-30
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Granted: 1954-03-30
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Expires: 1972-12-30
Abstract
No abstract record available.
Inventors
- 👤 Nelson Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:08
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)
US2455135A
Cited
US2534080A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |