US4559362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Immunopotentiator
Assignee: Microbial Chemistry Research Foundation
•
Filing: 1983-11-09
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Granted: 1985-12-17
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Expires: 2003-11-09
Abstract
Abstract This invention relates to an immunopotentiator or an immunopotentiating method using spermidine or its pharmacologically acceptable salt as an active ingredient.
Inventors
- 👤 Hamao Umezawa
- 👤 Tomio Takeuchi
- 👤 Masaaki Ishizuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:07
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/13; A61P; A61P43/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
24 words
An immunopotenciating method which comprises administering spermidine or its pharmacologically acceptable salt in an effective amount to a warm-blood animal having an immunity-associated disease.
Claim 2
Dependent Claim
24 words
An immunopotenciating method which comprises administering spermidine or its pharmacologically acceptable salt in an effective amount to a warm-blood animal having an immunity-associated disease.
Claim 3
Dependent Claim
21 words
The method of claim 1 wherein said compound is administered in amount between 0.005 mg/kg/day--50 mg/kg/day of body weight said animal.
Claim 4
Dependent Claim
23 words
The method of claim 2 wherein said compound is administered in amount between 0.01 mg/kg/day--50 mg/kg/day of the body weight of said animal.
References Cited (Backward Citations)
US4013507A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-16 | 1989-06-17 | 1989-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-16 | 1993-06-17 | 1993-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-16 | 1997-06-17 | 1997-12-17 | $7700.00 | Window Closed / Lapsed |