US2688733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric current carrying hinge with spring
Assignee: International Motors LLC
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Filing: 1952-06-21
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Granted: 1954-09-07
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Expires: 1972-06-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Leonard G Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:06
CPC Classifications
E; E05; E05D; E05D11/00; E05D11/0081; H; H01; H01R; H01R35/00; H01R35/02
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) | 1957-09-06 | 1958-03-08 | 1958-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-06 | 1962-03-08 | 1962-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-06 | 1966-03-08 | 1966-09-07 | $7700.00 | Window Closed / Lapsed |