Patent US3608083A successfully refreshed from Google Patents.
US3608083A
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Vitamin e powder
Assignee: F Hoffmann La Roche AG
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Filing: 1968-06-05
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Granted: 1971-09-21
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Expires: 1988-06-05
Abstract
Abstract High potency vitamin E powders, suitable for use in tablets and capsules are produced by spray drying an emulsion of a vitamin E active compound and a gelatin hydrolysate having very low Bloom.
Inventors
- 👤 Raymond Howard Bunnell
- 👤 Marco Alfred Cannalonga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:07
CPC Classifications
A; A61; A61K; A61K47/00; A61K47/30; A61K47/42
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
20 words
The powder of claim 1 wherein the amount of the vitamin E active compound present is 50 percent by weight.
Claim 2
Dependent Claim
16 words
The powder of claim 1 wherein the vitamin E active compound is dl- Alpha -tocopheryl acetate.
Claim 3
Dependent Claim
18 words
The powder of claim 1 containing from about 0.5 percent to about 0.9 percent of an antimicrobial preservative.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |