Patent US1655043A successfully refreshed from Google Patents.
US1655043A
Expired / Lapsed
US
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Double-acting door hinge
Assignee: Individual
•
Filing: 1923-05-07
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Granted: 1928-01-03
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Expires: 1943-05-07
Abstract
No abstract record available.
Inventors
- 👤 Daniel W Blackwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:26
CPC Classifications
E; E05; E05F; E05F1/00; E05F1/08; E05F1/10; E05F1/12; E05F1/1207; E05F1/1223; E05D; E05D15/00; E05D15/48; E05D15/54; 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)
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) | 1931-01-02 | 1931-07-04 | 1932-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-01-02 | 1935-07-04 | 1936-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-01-02 | 1939-07-04 | 1940-01-03 | $7700.00 | Window Closed / Lapsed |