US2849666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tensioned dielectric variable condenser
Assignee: Individual
•
Filing: 1955-07-05
•
Granted: 1958-08-26
•
Expires: 1975-07-05
Abstract
No abstract record available.
Inventors
- 👤 William A Seargeant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:35
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/14; H01G4/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735970A
Cited
US1094718A
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US1200063A
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US1548801A
Cited
US2729878A
Cited
US2576488A
Cited
US2644122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |