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US2894575A
Expired / Lapsed
US
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Curtain constructions
Assignee: Individual
•
Filing: 1957-03-21
•
Granted: 1959-07-14
•
Expires: 1977-03-21
Abstract
No abstract record available.
Inventors
- 👤 Kalder Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:57
CPC Classifications
A; A47; A47H; A47H13/00; A47H13/14; A47H13/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2527360A
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US2555155A
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US2527973A
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US2609043A
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Cited
US2771945A
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US2779405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-13 | 1963-01-12 | 1963-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-13 | 1967-01-12 | 1967-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-13 | 1971-01-12 | 1971-07-14 | $7700.00 | Window Closed / Lapsed |