US2579905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window blind
Assignee: Individual
•
Filing: 1946-11-22
•
Granted: 1951-12-25
•
Expires: 1966-11-22
Abstract
No abstract record available.
Inventors
- 👤 William L Coby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:21
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02; E06B7/08; E06B7/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US144019A
Cited
US147090A
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US183939A
Cited
US188908A
Cited
US230096A
Cited
US279156A
Cited
US1014679A
Cited
US1403054A
Cited
US1515521A
Cited
US2311950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |