US2622673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Venetian blind head bar organization
Assignee: LORENTZEN HARDWARE Manufacturing CORP
•
Filing: 1949-08-16
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Granted: 1952-12-23
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Expires: 1969-08-16
Abstract
No abstract record available.
Inventors
- 👤 Nelson Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:07
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/28; E06B9/30; E06B9/303; E06B9/307
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2396425A
Cited
US1952739A
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US2247321A
Cited
US2262949A
Cited
US2223633A
Cited
US2409821A
Cited
US2455135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |