US3022221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iron hydrogenated dextran
Assignee: Chemicals Inc
•
Filing: 1959-04-16
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Granted: 1962-02-20
•
Expires: 1979-04-16
Abstract
No abstract record available.
Inventors
- 👤 Nicholas A Floramo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:44
CPC Classifications
A; A61; A61K; A61K33/00; A61K33/24; A61K33/26; A61K31/00; A61K31/28; A61K31/295
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A THERAPEUTICALLY USEFUL COMPOSITION COMPRISING A SUBSTANTIALLY NON-IONIC COMPLEX WHICH IS STABLE ON CONTACT WITH WATER OF FERRIC HYDROXIDE AND A HYDROGENATED DEXTRAN HAVING AN AVERAGE INTRINSIC VISCOSITY OF ABOUT 0.03 TO ABOUT 0.15 AT 25*C., SAID HYDROGENATED DEXTRAN BEING SUBSTANTIALLY NON-REDUCING TO THE SOMOGYI REAGENT.
Claim 2
Dependent Claim
46 words
A THERAPEUTICALLY USEFUL COMPOSITION COMPRISING A SUBSTANTIALLY NON-IONIC COMPLEX WHICH IS STABLE ON CONTACT WITH WATER OF FERRIC HYDROXIDE AND A HYDROGENATED DEXTRAN HAVING AN AVERAGE INTRINSIC VISCOSITY OF ABOUT 0.03 TO ABOUT 0.15 AT 25*C., SAID HYDROGENATED DEXTRAN BEING SUBSTANTIALLY NON-REDUCING TO THE SOMOGYI REAGENT.
References Cited (Backward Citations)
US2807610A
Cited
US2820740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |