US2765387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dielectric heating system
Assignee: National Cylinder Gas Co
•
Filing: 1953-03-30
•
Granted: 1956-10-02
•
Expires: 1973-03-30
Abstract
No abstract record available.
Inventors
- 👤 Wilson Thomas Lamont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:03
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/48; H05B6/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2267520A
Cited
US2197124A
Cited
US2215582A
Cited
US2465102A
Cited
US2506626A
Cited
US2504109A
Cited
US2517948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |