US2555463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized sodium pantothenate composition
Assignee: Parke Davis and Co LLC
•
Filing: 1949-03-28
•
Granted: 1951-06-05
•
Expires: 1969-03-28
Abstract
No abstract record available.
Inventors
- 👤 Herman H Bogin
- 👤 Rufus D Feick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:39
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/185; A61K31/19; A61K31/195; A61K47/00; A61K47/30; A61K47/36; A61K47/38; A61K9/00; A61K9/14; A61K9/141; A61K9/146
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A DRY, STABLE, SOLID, NON-HYGROSCOPIC GRANULATED PRODUCT COMPRISING AN INTIMATE MIXTURE OF NORMALLY HYGROSCOPIC SODIUM PANTOTHENATE AND 2 TO 60% BY WEIGHT OF A CELLULOSE DERIVATIVE OF THE CLASS CONSISTING OF METHYL CELLULOSE AND AN ALKALI METAL SALT OF CARBOXYLMETHYL CELLULOSE.
Claim 2
Dependent Claim
41 words
A DRY, STABLE, SOLID, NON-HYGROSCOPIC GRANULATED PRODUCT COMPRISING AN INTIMATE MIXTURE OF NORMALLY HYGROSCOPIC SODIUM PANTOTHENATE AND 2 TO 60% BY WEIGHT OF A CELLULOSE DERIVATIVE OF THE CLASS CONSISTING OF METHYL CELLULOSE AND AN ALKALI METAL SALT OF CARBOXYLMETHYL CELLULOSE.
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) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |