US2887439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Palatable antihistamine tablet
Assignee: Pfizer Inc
•
Filing: 1956-09-28
•
Granted: 1959-05-19
•
Expires: 1976-09-28
Abstract
No abstract record available.
Inventors
- 👤 Klioze Oscar
- 👤 Jerome T Liebrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:52
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A RAPIDLY DISINTEGRABLE, PALATABLE TABLET COMPRISING A PLURALITY OF COMPRESSED GRANULES CONTAINING A WATER-INSOLUBLE ANTIHISTAMINE, A PLURALITY OF SEPARATE COMPRESSED GRANULES CONTAINING A SWEETENING AGENT IN A PHARMACOLOGICALLY ACCEPTABLE BINDER SELECTED FROM THE GROUP CONSISTING OF SUGARS AND SUGAR ALCOHOLS, AND DISPERSED IN THE INTERSTICES BETWEEN SAID GRANULES A FLAVORING AGENT AND A HYDROPHILIC STARCH ADAPTED TO SWELL RAPIDLY ON CONTACT WITH WATER, THEREBY DISINTEGRATING SAID TABLET.
Claim 2
Dependent Claim
67 words
A RAPIDLY DISINTEGRABLE, PALATABLE TABLET COMPRISING A PLURALITY OF COMPRESSED GRANULES CONTAINING A WATER-INSOLUBLE ANTIHISTAMINE, A PLURALITY OF SEPARATE COMPRESSED GRANULES CONTAINING A SWEETENING AGENT IN A PHARMACOLOGICALLY ACCEPTABLE BINDER SELECTED FROM THE GROUP CONSISTING OF SUGARS AND SUGAR ALCOHOLS, AND DISPERSED IN THE INTERSTICES BETWEEN SAID GRANULES A FLAVORING AGENT AND A HYDROPHILIC STARCH ADAPTED TO SWELL RAPIDLY ON CONTACT WITH WATER, THEREBY DISINTEGRATING SAID TABLET.
References Cited (Backward Citations)
US2410417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |