US2743427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double wire connector
Assignee: Hart Manufacturing Co
•
Filing: 1952-08-06
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Granted: 1956-04-24
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Expires: 1972-08-06
Abstract
No abstract record available.
Inventors
- 👤 Raymond H Boardman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:24
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/28; H01R4/48; H01R4/4809; H01R4/48185; H01R4/4819; H01R4/4821; H01R4/4846; H01R4/484
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) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |