US2496921A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable window ventilator
Assignee: Individual
•
Filing: 1945-06-06
•
Granted: 1950-02-07
•
Expires: 1965-06-06
Abstract
No abstract record available.
Inventors
- 👤 Sr Victor A Vicksell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:47
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02; E06B7/08; E06B7/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US262929A
Cited
FR333271A
Cited
US921854A
Cited
US1428074A
Cited
US1582129A
Cited
US1914571A
Cited
US2290713A
Cited
US2375176A
Cited
US2311122A
Cited
US2355847A
Cited
US2386380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |