Patent US3186546A successfully refreshed from Google Patents.
US3186546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flotation separation of particulate materials in non-aqueous media
Assignee: General Mills Inc
•
Filing: 1962-03-12
•
Granted: 1965-06-01
•
Expires: 1982-03-12
Abstract
No abstract record available.
Inventors
- 👤 James L Keen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:13
CPC Classifications
C; C01; C01B; C01B35/00; C01B35/08; C01B35/10; B; B03; B03D; B03D1/00; B03D1/001; B03D1/004; B03D1/008; B03D1/01; C01B35/06; C01B35/12; B03D2201/00; B03D2201/02; B03D2203/00; B03D2203/02; B03D2203/04; B03D2203/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
THE METHOD WHICH COMPRISES: ADDING A FLUORINATED ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF FLUORINATED ALIPHATIC ACIDS, AMINES, ALCOHOLS AND ALDEHYDES TO A MISCIBLE NON-FLUORINATED LIQUID ORGANIC MEDIUM CONTAINING PARTICULATE MATERIALS, THE AMOUNT OF SAID FLUORINATED ORGANIC COMPOUND BEING SUFFICIENT TO RENDER AT LEAST ONE OF SAID PARTICULATE MATERIALS ORGANOPHOBIC; FLOATING SAID PARTICULATE MATERIAL BY BUBBLING A GAS THROUGH THE ORGANIC MEDIUM; AND SEPARATING THE PARTICULATE MATERIAL FROM THE ORGANIC MEDIUM.
Claim 2
Independent Claim
72 words
THE METHOD WHICH COMPRISES: ADDING A FLUORINATED ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF FLUORINATED ALIPHATIC ACIDS, AMINES, ALCOHOLS AND ALDEHYDES TO A MISCIBLE NON-FLUORINATED LIQUID ORGANIC MEDIUM CONTAINING PARTICULATE MATERIALS, THE AMOUNT OF SAID FLUORINATED ORGANIC COMPOUND BEING SUFFICIENT TO RENDER AT LEAST ONE OF SAID PARTICULATE MATERIALS ORGANOPHOBIC; FLOATING SAID PARTICULATE MATERIAL BY BUBBLING A GAS THROUGH THE ORGANIC MEDIUM; AND SEPARATING THE PARTICULATE MATERIAL FROM THE ORGANIC MEDIUM.
References Cited (Backward Citations)
US2150899A
Cited
US2208758A
Cited
US2395866A
Cited
US2688401A
Cited
US2764602A
Cited
US2788362A
Cited
US2879302A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |