US2636727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window operator-screw type
Assignee: Individual
•
Filing: 1949-08-06
•
Granted: 1953-04-28
•
Expires: 1969-08-06
Abstract
No abstract record available.
Inventors
- 👤 Toth Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:56
CPC Classifications
E; E05; E05F; E05F11/00; E05F11/38; E05F11/40; Y; Y10; Y10T; Y10T403/00; Y10T403/65; Y10T403/66; Y10T403/71; Y10T403/7152; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18616; Y10T74/18656
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1306868A
Cited
GB190517516A
Cited
US1348692A
Cited
US1576785A
Cited
US1619167A
Cited
US2010647A
Cited
US2011057A
Cited
US1966815A
Cited
US2103864A
Cited
GB454201A
Cited
FR816483A
Cited
US2158714A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |