Patent US2621926A successfully refreshed from Google Patents.
US2621926A
Expired / Lapsed
US
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Window regulating device
Assignee: Hupp Corp
•
Filing: 1948-04-10
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Granted: 1952-12-16
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Expires: 1968-04-10
Abstract
No abstract record available.
Inventors
- 👤 Peter F Rossmann
- 👤 Rath Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:14
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/665; E05F15/689; E05F15/692; E05F11/00; E05F11/38; E05F11/44; E05F11/445; E05F15/6918; E05Y; E05Y2201/00; E05Y2201/40; E05Y2201/47; E05Y2201/49; E05Y2900/00; E05Y2900/50; E05Y2900/53; E05Y2900/538; E05Y2900/55
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |