Patent US2421155A successfully refreshed from Google Patents.
US2421155A
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US
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Electric cable unit and method of making the same
Assignee: MINES EQUIPMENT Co
•
Filing: 1941-07-28
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Granted: 1947-05-27
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Expires: 1961-07-28
Abstract
No abstract record available.
Inventors
- 👤 James B Miller
- 👤 James H Simpson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:17
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/46; H01R13/502; H01R13/5025
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-26 | 1950-11-25 | 1951-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-26 | 1954-11-25 | 1955-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-26 | 1958-11-25 | 1959-05-27 | $7700.00 | Window Closed / Lapsed |