US2771789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window regulating device
Assignee: Hupp Corp
•
Filing: 1952-11-05
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Granted: 1956-11-27
•
Expires: 1972-11-05
Abstract
No abstract record available.
Inventors
- 👤 Peter F Rossmann
- 👤 Rath Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:09
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/665; E05F15/689; E05F15/692; E05Y; E05Y2201/00; E05Y2201/40; E05Y2201/47; E05Y2201/49; E05Y2900/00; E05Y2900/50; E05Y2900/53; E05Y2900/538; E05Y2900/55; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/20654
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2382791A
Cited
US2421814A
Cited
US2390117A
Cited
US2458441A
Cited
US2621543A
Cited
US2621926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |