US3070508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for rendering nicotinamide palatable
Assignee: Merck and Co Inc
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Filing: 1959-06-10
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Granted: 1962-12-25
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Expires: 1979-06-10
Abstract
No abstract record available.
Inventors
- 👤 Siegel Sheldon
- 👤 Russell H Pettebone
- 👤 Edward J Hanus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:57
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/435; A61K31/44; A61K47/00; A61K47/50; A61K47/51; A61K47/56; A61K47/58; A61K47/585
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A METHOD FOR RENDERING UNPLEASANT TASTING NICOTINAMIDE PALATABLE WHICH COMPRISES CONTACTING A SOLUTION OF NICOTINAMIDE WITH A SUBSTANTIALLY TASTELESS, PHARMACEUTICALLY AND MEDICALLY ACCEPTABLE SYNTHETIC CATION EXCHANGE RESIN TO FORM A NICOTINAMIDE RESIN ADSORBATE AND THEN DRYING SAID RESIN ADSORBATE UNTIL SUBSTANTIALLY DRY, THEREBY FORMING A PALATABLE FORM OF NICOTINAMIDE WHICH REMAINS PALATABLE WHEN CHEWED.
Claim 2
Independent Claim
54 words
A METHOD FOR RENDERING UNPLEASANT TASTING NICOTINAMIDE PALATABLE WHICH COMPRISES CONTACTING A SOLUTION OF NICOTINAMIDE WITH A SUBSTANTIALLY TASTELESS, PHARMACEUTICALLY AND MEDICALLY ACCEPTABLE SYNTHETIC CATION EXCHANGE RESIN TO FORM A NICOTINAMIDE RESIN ADSORBATE AND THEN DRYING SAID RESIN ADSORBATE UNTIL SUBSTANTIALLY DRY, THEREBY FORMING A PALATABLE FORM OF NICOTINAMIDE WHICH REMAINS PALATABLE WHEN CHEWED.
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) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |