US2028035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio tube socket
Assignee: CONTINENTAL DIAMOND FIBRE CO
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Filing: 1930-09-18
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Granted: 1936-01-14
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Expires: 1950-09-18
Abstract
No abstract record available.
Inventors
- 👤 John F Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:46
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/74; H01R33/76; H01R33/7607; H01R33/7614; H01R33/7621
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) | 1939-01-13 | 1939-07-15 | 1940-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-01-13 | 1943-07-15 | 1944-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-01-13 | 1947-07-15 | 1948-01-14 | $7700.00 | Window Closed / Lapsed |