US3028308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry pharmaceutical vehicle of copolymer of hydrolyzed gelatin and glyoxal, and its production
Assignee: Merck and Co Inc
•
Filing: 1959-10-01
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Granted: 1962-04-03
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Expires: 1979-10-01
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Zambito
- 👤 Thomas J Macek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:29
CPC Classifications
C; C09; C09H; C09H7/00; A; A61; A61K; A61K9/00; A61K9/20; A61K9/2004; A61K9/2022; A61K9/2063; Y; Y10; Y10S; Y10S8/00; Y10S8/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A SUBSTANTIALLY DRY PHARMACEUTICAL VEHICLE SUITABLE FOR ORAL ADMINISTRATION COMPRISING A COPOLYMER OF HYDROLYZED GELATIN AND GLYOXAL CONTAINING FROM ABOUT 2.5 TO ABOUT 7% BY WEIGHT GLYOXAL BASED ON THE WEIGHT OF THE GELATIN.
Claim 2
Dependent Claim
34 words
A SUBSTANTIALLY DRY PHARMACEUTICAL VEHICLE SUITABLE FOR ORAL ADMINISTRATION COMPRISING A COPOLYMER OF HYDROLYZED GELATIN AND GLYOXAL CONTAINING FROM ABOUT 2.5 TO ABOUT 7% BY WEIGHT GLYOXAL BASED ON THE WEIGHT OF THE GELATIN.
References Cited (Backward Citations)
US2591133A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |