Patent US2992141A successfully refreshed from Google Patents.
US2992141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystal separating process
Assignee: Foremost Dairies Inc
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Filing: 1958-06-02
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Granted: 1961-07-11
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Expires: 1978-06-02
Abstract
No abstract record available.
Inventors
- 👤 David D Peebles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:13
CPC Classifications
C; C13; C13K; C13K5/00; A; A23; A23C; A23C21/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
96 words
IN A PROCESS FOR THE REMOVAL OF LACTOSE FROM AN AQUEOUS LIQUID LACTEAL MATERIAL CONTAINING THE SAME, THE STEPS OF FORMING A CONCENTRATE OF THE MATERIAL WITH A PORTION OF ITS LACTOSE IN A CONDITION OF SUPERSATURATION, CRYSTALLIZING LACTOSE IN THE CONCENTRATE TO PROVIDE CRYSTAL PARTICLES RANGING GENERALLY FROM ABOUT 105 TO 840 MICRONS IN SIZE, SUBJECTING THE CONCENTRATE TO ATOMIZATION WHEREBY ATOMIZED DROPLETS AND LACTOSE CRYSTALS ARE DISCHARGED THROUGH A ZONE ADJACENT THE REGION OF ATOMIZATION, DIRECTING A STREAM OF GAS TOWARD AND THROUGH SAID ZONE FROM ONE SIDE THEREOF TO THEREBY CAUSE SEPARATION BETWEEN
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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) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |