US2975831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary louver traverse blind
Assignee: EDGAR K ORR
•
Filing: 1957-10-10
•
Granted: 1961-03-21
•
Expires: 1977-10-10
Abstract
No abstract record available.
Inventors
- 👤 Ernest F Taylor
- 👤 Ralph M Poe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:25
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/36; E06B9/362; Y; Y10; Y10S; Y10S160/00; Y10S160/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2386695A
Cited
US2591775A
Cited
US2849061A
Cited
US2768679A
Cited
US2768680A
Cited
US2731082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |