US2665904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic-manual window operator
Assignee: Casco Products Corp
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Filing: 1950-12-29
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Granted: 1954-01-12
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Expires: 1970-12-29
Abstract
No abstract record available.
Inventors
- 👤 Herbert G Lehmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:25
CPC Classifications
E; E05; E05F; E05F11/00; E05F11/38; E05F11/382; E05F15/00; E05F15/60; E05F15/603; E05F15/665; E05F15/689; E05F15/692; E05Y; E05Y2900/00; E05Y2900/50; E05Y2900/53; E05Y2900/55; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20474; Y10T74/20576; Y10T74/20732; Y10T74/20744
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) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |