US2543083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of carotene concentrate
Assignee: Individual
•
Filing: 1946-02-18
•
Granted: 1951-02-27
•
Expires: 1966-02-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Jonathan W White
- 👤 Naghski Joseph
- 👤 Weil Leopold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:05
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/59; C; C12; C12N; C12N1/00; C12N1/20; C12N1/205; C12P; C12P23/00; C12P33/00; C12R; C12R2001/00; C12R2001/01; C12R2001/145; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/842
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A PROCESS OF RECOVERING A CAROTENE CONCENTRATE COMPRISING, FERMENTING A FLESHY CAROTENECONTAINING PLANT TISSUE WITH CLOSTRIDIUM ROSEUM TO DIGEST AND DISSOLVE A LARGE PORTION OF THE CONSTITUENTS BUT NOT THE CAROTENE, THEREBY TO LIBERATE THE CELL CONTENTS CONTAINING THE CAROTENE, AND RECOVERING A CAROTENE CONCENTRATE FROM THE FERMENTATION MASS.
Claim 2
Dependent Claim
49 words
A PROCESS OF RECOVERING A CAROTENE CONCENTRATE COMPRISING, FERMENTING A FLESHY CAROTENECONTAINING PLANT TISSUE WITH CLOSTRIDIUM ROSEUM TO DIGEST AND DISSOLVE A LARGE PORTION OF THE CONSTITUENTS BUT NOT THE CAROTENE, THEREBY TO LIBERATE THE CELL CONTENTS CONTAINING THE CAROTENE, AND RECOVERING A CAROTENE CONCENTRATE FROM THE FERMENTATION MASS.
References Cited (Backward Citations)
US2182989A
Cited
US2348443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |