US2511338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable vacuum condenser
Assignee: Jennings Radio Manufacturing Corp
•
Filing: 1945-05-28
•
Granted: 1950-06-13
•
Expires: 1965-05-28
Abstract
No abstract record available.
Inventors
- 👤 Jennings Jo Emmett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:54
CPC Classifications
H; H01; H01G; H01G5/00; H01G5/04; H01G5/12; H01G5/01; H01G5/014; H01G2005/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US450451A
Cited
US1548122A
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US1694384A
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FR603472A
Cited
US1641687A
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GB350881A
Cited
US2035532A
Cited
US2091855A
Cited
US2192062A
Cited
US2344238A
Cited
US2339663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |