Patent US2673754A successfully refreshed from Google Patents.
US2673754A
Expired / Lapsed
US
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Window sash control
Assignee: ROLL SASH Inc
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Filing: 1950-09-18
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Granted: 1954-03-30
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Expires: 1970-09-18
Abstract
No abstract record available.
Inventors
- 👤 Mathias F Jaksch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:54
CPC Classifications
E; E05; E05D; E05D13/00; E05D13/04; E05D13/06; E05F; E05F7/00; E05F7/04; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/148
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US165759A
Cited
GB191407002A
Cited
GB202410A
Cited
US1581908A
Cited
US2503076A
Cited
US2439057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |