Patent US2562972A successfully refreshed from Google Patents.
US2562972A
Expired / Lapsed
US
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Method and apparatus for purifying and testing a fluid dielectric and filling a container or an electrical capacitor therewith
Assignee: RCA Corp
•
Filing: 1944-11-14
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Granted: 1951-08-07
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Expires: 1964-11-14
Abstract
No abstract record available.
Inventors
- 👤 Wald Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:44
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/20
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) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |