US3177197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrolysis of scleroproteins with alcoholic hydroxide solution
Assignee: Reliable Packing Co
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Filing: 1963-06-20
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Granted: 1965-04-06
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Expires: 1983-06-20
Abstract
No abstract record available.
Inventors
- 👤 Ervin J Hawrylewicz
- 👤 Irene D Bliudzius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:18
CPC Classifications
A; A23; A23J; A23J3/00; A23J3/30; A23J3/32; A23J1/00; A23J1/10; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/842
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A PROCESS FOR THE PREPARATION OF A PROTEINACEOUS PRODUCT WHICH CAN BE HYDROLYZED BY PEPSIN, WHICH CONSISTS IN CONTACTING A MATERIAL CONTAINING SCLEROPROTEIN WITH A LIQUID CONSISTING OF A LOWER ALIPHATIC ALCOHOL AND AN AQUEOUS ALKALI HYDROXIDE, SAID LIQUID HAVING A PH OF 12 TO 14, AT AMBIENT TEMPERATURE AND NORMAL PRESSURE, ADDING A MINERAL ACID TO LOWER THE PH TO 2 TO 6 AND SEPARATING THE PROTEIN.
Claim 2
Dependent Claim
68 words
A PROCESS FOR THE PREPARATION OF A PROTEINACEOUS PRODUCT WHICH CAN BE HYDROLYZED BY PEPSIN, WHICH CONSISTS IN CONTACTING A MATERIAL CONTAINING SCLEROPROTEIN WITH A LIQUID CONSISTING OF A LOWER ALIPHATIC ALCOHOL AND AN AQUEOUS ALKALI HYDROXIDE, SAID LIQUID HAVING A PH OF 12 TO 14, AT AMBIENT TEMPERATURE AND NORMAL PRESSURE, ADDING A MINERAL ACID TO LOWER THE PH TO 2 TO 6 AND SEPARATING THE 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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |