US2485913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric condenser
Assignee: Ambac International Corp
•
Filing: 1945-02-02
•
Granted: 1949-10-25
•
Expires: 1965-02-02
Abstract
No abstract record available.
Inventors
- 👤 Joseph T Osterman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:08
CPC Classifications
H; H04; H04B; H04B15/00; H04B15/02; H04B15/025; H01; H01G; H01G4/00; H01G4/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2398635A
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US1116013A
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US1175343A
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US1624951A
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US1904805A
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US1850105A
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US2064819A
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US2304764A
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US2323124A
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US2397551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |