US2505980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable resistance capacity arrangement
Assignee: RCA Corp
•
Filing: 1945-11-28
•
Granted: 1950-05-02
•
Expires: 1965-11-28
Abstract
No abstract record available.
Inventors
- 👤 Robert S Mautner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:17
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/20; H03B5/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2185870A
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US2398112A
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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) | 1953-05-01 | 1953-10-31 | 1954-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-01 | 1957-10-31 | 1958-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-01 | 1961-10-31 | 1962-05-02 | $7700.00 | Window Closed / Lapsed |