US3355812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drying by high frequency electric field
Assignee: Fitchburg Paper Co
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Filing: 1965-08-04
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Granted: 1967-12-05
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Expires: 1985-08-04
Abstract
No abstract record available.
Inventors
- 👤 William N Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:48
CPC Classifications
F; F26; F26B; F26B3/00; F26B3/32; F26B3/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
33 words
THE METHOD OF DRYING MATERIAL BY PASSING IT ALONG AND OVER A SMOOTH SURFACE OF A CERAMIC BLOCK AND PRESSING IT THERETO WHILE SIMULTANEOUSLY IMPRESSING A HIGH FREQUENCY ELECTRIC FIELD ON SAID MATERIAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |