US2114645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window operating and locking mechanism
Assignee: Individual
•
Filing: 1936-08-07
•
Granted: 1938-04-19
•
Expires: 1956-08-07
Abstract
No abstract record available.
Inventors
- 👤 William Henry Van Benschoten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:28
CPC Classifications
E; E05; E05F; E05F11/00; E05F11/02; E05F11/08; E05F11/12; E05F11/14; E05F11/34; E05Y; E05Y2201/00; E05Y2201/20; E05Y2201/218; E05Y2201/22; E05Y2201/23; E05Y2201/232; E05Y2201/24; E05Y2201/60; E05Y2201/622; E05Y2201/71; E05Y2800/00; E05Y2800/26; E05Y2800/292; E05Y2800/296; Y; Y10; Y10S; Y10S292/00; Y10S292/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-04-18 | 1941-10-18 | 1942-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-04-18 | 1945-10-18 | 1946-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-04-18 | 1949-10-18 | 1950-04-19 | $7700.00 | Window Closed / Lapsed |