US3737378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deodorizing method by film and steam distillation
Assignee: Kao Corp
•
Filing: 1970-01-26
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Granted: 1973-06-05
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Expires: 1990-01-26
Abstract
Abstract A LIQUID FEED MATERIAL IS DEODORIZED BY FLOWING SAME DOWNWARDLY IN THE FORM OF A THIN FILM AND NBLOWING STEAM AGAINST THE FILM TO REMOVE ODOR COMPONENTS THEREFROM. THE STEAM IS SUPPLIED SO THAT SUBSTANTIALLY THE ENTIRE SURFACE OF THE FILM IS CONTACTED OVER SUBSTANTIALLY ITS ENTIRE LENGTH WITH FRESHLY SUPPLIED STEAM.
Inventors
- 👤 A Mori
- 👤 Y Nagata
- 👤 H Nakagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:59
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/22; B01D1/14; C; C11; C11B; C11B3/00; C11B3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |