US2433305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extension hinge
Assignee: Westinghouse Electric Corp
•
Filing: 1945-08-01
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Granted: 1947-12-23
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Expires: 1965-08-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Frederick L Talcott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:56
CPC Classifications
E; E05; E05D; E05D3/00; E05D3/06; E05D3/12; E05D11/00; E05D11/06; E05D11/10; E05D11/1007; E05Y; E05Y2900/00; E05Y2900/30; E05Y2900/31; F; F25; F25D; F25D2323/00; F25D2323/02; F25D2323/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US431226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-22 | 1951-06-23 | 1951-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-22 | 1955-06-23 | 1955-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-22 | 1959-06-23 | 1959-12-23 | $7700.00 | Window Closed / Lapsed |