US3258347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Edible pharmaceutical inks
Assignee: Bayer Corp
•
Filing: 1963-08-19
•
Granted: 1966-06-28
•
Expires: 1983-08-19
Abstract
No abstract record available.
Inventors
- 👤 Brown James Carroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:48
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
AN EDIBLE INK COMPOSITION FOR APPLYING INDICIA TO A WAX-COATED PHARMACEUTICAL TABLET COMPRISING PURIFIED SHELLAC, ETHYL ALCOHOL, PROPYLENE GLYCOL, AND A COLORING SUBSTANCE SELECTED FROM PIGMENTS AND LAKES, WHEREIN THE PROPYLENE GLYCOL/SHELLAC WEIGHT RATIO IS IN THE RANGE OF FROM ABOUT 0.2 TO 0.7, BASED ON THE DRY WEIGHT OF THE SHELLAC.
Claim 2
Dependent Claim
52 words
AN EDIBLE INK COMPOSITION FOR APPLYING INDICIA TO A WAX-COATED PHARMACEUTICAL TABLET COMPRISING PURIFIED SHELLAC, ETHYL ALCOHOL, PROPYLENE GLYCOL, AND A COLORING SUBSTANCE SELECTED FROM PIGMENTS AND LAKES, WHEREIN THE PROPYLENE GLYCOL/SHELLAC WEIGHT RATIO IS IN THE RANGE OF FROM ABOUT 0.2 TO 0.7, BASED ON THE DRY WEIGHT OF THE SHELLAC.
References Cited (Backward Citations)
US2404680A
Cited
US2948626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |