US2579283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of lysine monohydro-chloride
Assignee: EIDP Inc
•
Filing: 1950-07-21
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Granted: 1951-12-18
•
Expires: 1970-07-21
Abstract
No abstract record available.
Inventors
- 👤 Sterling N Vines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:24
CPC Classifications
B; B01; B01J; B01J41/00; B01J41/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
THE PROCESS FOR CONVERTING LYSINE DIHYDROCHLORIDE TO LYSINE MONOHYDROCHLORIDE WHICH COMPRISES CONTACTING A SOLUTION OF THE DIHYDROCHLORIDE WITH A PHENOL-TETRAETHYLENE PENTAMINEFORMALDEHYDE ANION-EXCHANGE RESIN, SAID RESIN BEING EMPLOYED IN ITS BASIC FORM.
Claim 2
Dependent Claim
31 words
THE PROCESS FOR CONVERTING LYSINE DIHYDROCHLORIDE TO LYSINE MONOHYDROCHLORIDE WHICH COMPRISES CONTACTING A SOLUTION OF THE DIHYDROCHLORIDE WITH A PHENOL-TETRAETHYLENE PENTAMINEFORMALDEHYDE ANION-EXCHANGE RESIN, SAID RESIN BEING EMPLOYED IN ITS BASIC FORM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |