Patent US4834506A successfully refreshed from Google Patents.
Patent US2744222A successfully refreshed from Google Patents.
US2744222A
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Dynamic capacitor
Assignee: Beckman Coulter Inc
•
Filing: 1952-03-24
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Granted: 1956-05-01
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Expires: 1972-03-24
Abstract
No abstract record available.
Inventors
- 👤 Toomin Hershel
- 👤 Hare George Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:25
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/38; H03F3/40; G; G01; G01R; G01R19/00; G01R19/18; H03J; H03J7/00; H03J7/02; H03J7/04
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) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |