US2783344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dielectric heating systems and applicators
Assignee: National Cylinder Gas Co
•
Filing: 1954-03-26
•
Granted: 1957-02-26
•
Expires: 1974-03-26
Abstract
No abstract record available.
Inventors
- 👤 Henry R Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:55
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1145366A
Cited
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US2204617A
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US2410222A
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GB580374A
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US2483569A
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US2446032A
Cited
US2474420A
Cited
US2488545A
Cited
US2497670A
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US2500752A
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US2504109A
Cited
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Cited
US2540613A
Cited
US2498719A
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US2546004A
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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) | 1960-02-26 | 1960-08-27 | 1961-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-26 | 1964-08-27 | 1965-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-26 | 1968-08-27 | 1969-02-26 | $7700.00 | Window Closed / Lapsed |