US2816099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making urea derivatives of proteins
Assignee: JBS USA LLC
•
Filing: 1955-09-09
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Granted: 1957-12-10
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Expires: 1975-09-09
Abstract
No abstract record available.
Inventors
- 👤 Harland H Young
- 👤 Edward F Christopher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:51
CPC Classifications
C; C08; C08H; C08H1/00; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/842
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A PROCESS FOR INTRODUCING A CARBAMYL RADICAL INTO A INTO A PROTEIN MOLECULE WHICH COMPRISES: FORMING AN AQUEOUS SOLUTION OF A MATERIAL WHICH EVOLVES ISOCYANIC ACID IN THE PRESENCE OF WATER AND ADMIXING TO SAID AQUEOUS SOLUTION A PROTEIN MATERIAL; AND THEREAFTER REACTING SAID ISOCYANIC ACID WITH THE FREE AMINO GROUPS OF SAID PROTEIN.
Claim 2
Dependent Claim
54 words
A PROCESS FOR INTRODUCING A CARBAMYL RADICAL INTO A INTO A PROTEIN MOLECULE WHICH COMPRISES: FORMING AN AQUEOUS SOLUTION OF A MATERIAL WHICH EVOLVES ISOCYANIC ACID IN THE PRESENCE OF WATER AND ADMIXING TO SAID AQUEOUS SOLUTION A PROTEIN MATERIAL; AND THEREAFTER REACTING SAID ISOCYANIC ACID WITH THE FREE AMINO GROUPS OF SAID PROTEIN.
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) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |