Patent US2707993A successfully refreshed from Google Patents.
US2707993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertical slat blinds
Assignee: Individual
•
Filing: 1952-02-21
•
Granted: 1955-05-10
•
Expires: 1972-02-21
Abstract
No abstract record available.
Inventors
- 👤 Fay E Null
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:25
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
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1841065A
Cited
US2121217A
Cited
US2588243A
Cited
US2229225A
Cited
US2315605A
Cited
US2386695A
Cited
US2448800A
Cited
US2572036A
Cited
US2605824A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-09 | 1958-11-08 | 1959-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-09 | 1962-11-08 | 1963-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-09 | 1966-11-08 | 1967-05-10 | $7700.00 | Window Closed / Lapsed |