Patent US3508482A successfully refreshed from Google Patents.
Patent US1982269A successfully refreshed from Google Patents.
US1982269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sash operating mechanism
Assignee: Truscon Steel Co
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Filing: 1931-04-20
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Granted: 1934-11-27
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Expires: 1951-04-20
Abstract
No abstract record available.
Inventors
- 👤 Adolf H Schaffert
- 👤 Harold E Van Voorhees
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:25
CPC Classifications
E; E05; E05F; E05F11/00; E05F11/02; E05F11/08; E05F11/12; E05F11/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-11-26 | 1938-05-28 | 1938-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-11-26 | 1942-05-28 | 1942-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-11-26 | 1946-05-28 | 1946-11-27 | $7700.00 | Window Closed / Lapsed |