US2597228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating proteins with saturated aliphatic polyamines and resulting product
Assignee: Armour and Co
•
Filing: 1949-01-06
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Granted: 1952-05-20
•
Expires: 1969-01-06
Abstract
No abstract record available.
Inventors
- 👤 Earl D Cornwell
- 👤 Dobija Stephen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:03
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/829; Y10S530/83
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A PROCESS FOR PRODUCING A WATER-SOLUBLE COMPOSITON WHICH UPON DRYING WILL FORM A WATER-INSOLUBLE FILM, WHICH CONSISTS OF REACTING A PROTEIN MATERIAL SELECTED FROM THE GROUP CONSISTING OF BLOOD PROTEIN AND EGG PROTEIN IN AN AQUEOUS SOLUTION WITH A SATURATED ALIPHATIC POLYAMINE AT A TEMPERATURE BETWEEN 150 AND 200* F.
Claim 2
Dependent Claim
50 words
A PROCESS FOR PRODUCING A WATER-SOLUBLE COMPOSITON WHICH UPON DRYING WILL FORM A WATER-INSOLUBLE FILM, WHICH CONSISTS OF REACTING A PROTEIN MATERIAL SELECTED FROM THE GROUP CONSISTING OF BLOOD PROTEIN AND EGG PROTEIN IN AN AQUEOUS SOLUTION WITH A SATURATED ALIPHATIC POLYAMINE AT A TEMPERATURE BETWEEN 150 AND 200* F.
References Cited (Backward Citations)
US2143023A
Cited
US2318046A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |