US2536360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Racemization of lysine
Assignee: EIDP Inc
•
Filing: 1949-11-25
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Granted: 1951-01-02
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Expires: 1969-11-25
Abstract
No abstract record available.
Inventors
- 👤 Robert D Emmick
- 👤 Kenneth O Hambrock
- 👤 Arthur O Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:00
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/42; C07C51/487; C12; C12P; C12P13/00; C12P13/04; C12P13/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
PROCESS FOR THE RACEMIZATION OF LYSINE WHICH COMPRISING HEATING OPTICALLY ACTIVE LYSINE IN COMBINATION WITH A CATION-EXCHANGE MATERIAL.
Claim 2
Dependent Claim
18 words
PROCESS FOR THE RACEMIZATION OF LYSINE WHICH COMPRISING HEATING OPTICALLY ACTIVE LYSINE IN COMBINATION WITH A CATION-EXCHANGE MATERIAL.
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) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |