Patent US2579633A successfully refreshed from Google Patents.
US2579633A
Expired / Lapsed
US
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Variload and varibias circuits
Assignee: Individual
•
Filing: 1946-03-01
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Granted: 1951-12-25
•
Expires: 1966-03-01
Abstract
No abstract record available.
Inventors
- 👤 Le Roy J Wadzinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:07
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K5/00; H03K5/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1958027A
Cited
US2280990A
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US2343290A
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US2280733A
Cited
US2442286A
Cited
US2438960A
Cited
US2511595A
Cited
US2418892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |