Patent US1583766A successfully refreshed from Google Patents.
Patent US2541572A successfully refreshed from Google Patents.
US2541572A
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Process for treating animal materials
Assignee: Armour and Co
•
Filing: 1948-11-04
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Granted: 1951-02-13
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Expires: 1968-11-04
Abstract
No abstract record available.
Inventors
- 👤 Harold M Coleman
- 👤 Albert H Steffen
- 👤 Ervin W Hopkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:01
CPC Classifications
A; A23; A23B; A23B4/00; A23B4/12; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/829; Y10S530/84
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
IN A PROCESS FOR IMPROVING THE COLOR OF ANIMAL MATERIAL CONTAINING A GLOBIN MATERIAL SELECTED FROM THE GROUP CONSISTING OF METAMYOGLOBIN AND METHEMOGLOBIN, THE STEP OF SUBJECTING SAID PIGMENT TO CONTACT WITH ASCORBIC ACID TO PRODUCE A REACTION PIGMENT OF BRIGHT RED COLOR.
Claim 2
Dependent Claim
43 words
IN A PROCESS FOR IMPROVING THE COLOR OF ANIMAL MATERIAL CONTAINING A GLOBIN MATERIAL SELECTED FROM THE GROUP CONSISTING OF METAMYOGLOBIN AND METHEMOGLOBIN, THE STEP OF SUBJECTING SAID PIGMENT TO CONTACT WITH ASCORBIC ACID TO PRODUCE A REACTION PIGMENT OF BRIGHT RED COLOR.
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) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |