US3056642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Granular form red oil soluble dye
Assignee: Wyeth Holdings LLC
•
Filing: 1959-12-22
•
Granted: 1962-10-02
•
Expires: 1979-12-22
Abstract
No abstract record available.
Inventors
- 👤 Martin L Kesler
- 👤 James A Risberg
- 👤 Dziomba Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:01
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/003; C09; C09B; C09B31/00; C09B31/02; C09B31/06; C09B31/068; Y; Y10; Y10S; Y10S534/00; Y10S534/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
AN OIL SOLUBLE DYE COMPOSITION COMPRISING A MIXTURE OF COMPOUNDS OF THE FORMULA IN WHICH M AND N ARE EACH POSITIVE INTEGERS LESS THAN 3, AND SAID MIXTURE HAVING A COMPOSITION RANGE SUCH THAT THE RATIO OF COMPOUNDS IN WHICH M EQUALS 1 TO COMPOUNDS IN WHICH M EQUALS 2 AND ALSO THE RATIO OF COMPOUNDS IN WHICH N EQUALS 1 TO COMPOUNDS IN WHICH N EQUALS 2 ARE EACH SEPARATELY BETWEEN 3:1 TO 1:3; THERE BEING BETWEEN 0.7 AND 1.0% BY WEIGHT OF FREE BETANAPHTHOL PRESENT IN SAID COMPOSITION; THE SAID COMPOSITION HAVING THE FOLLOWING PARTICLE SIZE DISTRIBUTION:
Claim 2
Dependent Claim
99 words
AN OIL SOLUBLE DYE COMPOSITION COMPRISING A MIXTURE OF COMPOUNDS OF THE FORMULA IN WHICH M AND N ARE EACH POSITIVE INTEGERS LESS THAN 3, AND SAID MIXTURE HAVING A COMPOSITION RANGE SUCH THAT THE RATIO OF COMPOUNDS IN WHICH M EQUALS 1 TO COMPOUNDS IN WHICH M EQUALS 2 AND ALSO THE RATIO OF COMPOUNDS IN WHICH N EQUALS 1 TO COMPOUNDS IN WHICH N EQUALS 2 ARE EACH SEPARATELY BETWEEN 3:1 TO 1:3; THERE BEING BETWEEN 0.7 AND 1.0% BY WEIGHT OF FREE BETANAPHTHOL PRESENT IN SAID COMPOSITION; THE SAID COMPOSITION HAVING THE FOLLOWING PARTICLE SIZE DISTRIBUTION:
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) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |