US2592691A
Expired / Lapsed
US
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Avoiding effect of moisture during high-frequency dielectric heating
Assignee: United Shoe Machinery Corp
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Filing: 1946-08-31
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Granted: 1952-04-15
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Expires: 1966-08-31
Abstract
No abstract record available.
Inventors
- 👤 George T Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:53
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/54; F; F26; F26B; F26B3/00; F26B3/32; F26B3/34; F26B3/347
Claims Analysis
Total Claims: 0
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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) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |