US2604654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hinge assembly for swinging doors
Assignee: SANYMETAL PRODUCTS CO Inc
•
Filing: 1948-06-26
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Granted: 1952-07-29
•
Expires: 1968-06-26
Abstract
No abstract record available.
Inventors
- 👤 Thomas F Anderson
- 👤 Kent W Benham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:37
CPC Classifications
E; E05; E05F; E05F1/00; E05F1/08; E05F1/10; E05F1/12; E05F1/1207; E05F1/1223; E05F1/02; E05F1/04; E05F1/06; E05F1/061; E05F1/065; E05Y; E05Y2201/00; E05Y2201/60; E05Y2201/622; E05Y2201/638
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |