Patent US2812019A successfully refreshed from Google Patents.
US2812019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of lecithin
Assignee: Rodney Hunt Machine Co
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Filing: 1954-09-22
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Granted: 1957-11-05
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Expires: 1974-09-22
Abstract
No abstract record available.
Inventors
- 👤 Calvin L Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:33
CPC Classifications
A; A23; A23J; A23J7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
THE PROCESS FOR REMOVING MOISTURE FROM LECITHIN CONTAINING ABOUT 20% TO ABOUT 50% MOISTURE IN A SUBSTANTIALLY VERTICAL, SUBSTANTIALLY CYLINDRICAL CHAMBER, COMPRISING PASSING THE LECITHIN DOWNWARD THROUGH SAID CHAMBER, AGITATING SAID LECITHIN TO FORM A THIN TURBULENT FILM ON THE WALL OF SAID CHAMBER, APPLYING VACUUM TO SAID CHAMBER TO MAINTAIN SAID CHAMBER AT A PRESSURE OF ABOUT
Claim 2
Dependent Claim
58 words
THE PROCESS FOR REMOVING MOISTURE FROM LECITHIN CONTAINING ABOUT 20% TO ABOUT 50% MOISTURE IN A SUBSTANTIALLY VERTICAL, SUBSTANTIALLY CYLINDRICAL CHAMBER, COMPRISING PASSING THE LECITHIN DOWNWARD THROUGH SAID CHAMBER, AGITATING SAID LECITHIN TO FORM A THIN TURBULENT FILM ON THE WALL OF SAID CHAMBER, APPLYING VACUUM TO SAID CHAMBER TO MAINTAIN SAID CHAMBER AT A PRESSURE OF ABOUT
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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) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |