Patent US2795414A successfully refreshed from Google Patents.
US2795414A
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Window operating device
Assignee: Productive Inventions Inc
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Filing: 1953-07-03
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Granted: 1957-06-11
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Expires: 1973-07-03
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:03
CPC Classifications
B; B60; B60J; B60J1/00; B60J1/08; B60J1/12; B60J1/14; E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/611; E05F15/63; E05Y; E05Y2900/00; E05Y2900/50; E05Y2900/53; E05Y2900/531; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2144; Y10T74/2146
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-10 | 1960-12-10 | 1961-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-10 | 1964-12-10 | 1965-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-10 | 1968-12-10 | 1969-06-11 | $7700.00 | Window Closed / Lapsed |