Patent US2500184A successfully refreshed from Google Patents.
US2500184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical apparatus
Assignee: S H COUCH CO Inc
•
Filing: 1945-06-04
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Granted: 1950-03-14
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Expires: 1965-06-04
Abstract
No abstract record available.
Inventors
- 👤 Carl A P Johnson
- 👤 Archie T Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:26
CPC Classifications
H; H01; H01R; H01R29/00; H01R13/00; H01R13/66; H01R13/70; H01R13/703
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2032038A
Cited
US2239035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |