Patent US2569919A successfully refreshed from Google Patents.
US2569919A
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High-frequency dielectric heating
Assignee: Hydropress Inc
•
Filing: 1946-09-20
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Granted: 1951-10-02
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Expires: 1966-09-20
Abstract
No abstract record available.
Inventors
- 👤 Joseph V Bertrand
- 👤 George S Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:53
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2398606A
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US2436999A
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US2427094A
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US2427100A
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US2422189A
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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) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |