Patent US3697652A successfully refreshed from Google Patents.
US3697652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-acetylglucosamine for treating degenerative afflictions of the joints
Assignee: Rottapharm SpA
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Filing: 1969-08-19
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Granted: 1972-10-10
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Expires: 1989-08-19
Abstract
Abstract Pharmaceutical preparations for the treatment of degenerative afflications of the joints, with such preparations containing as the active ingredient one or more N-acyl compounds of aminocarbohydrates.
Inventors
- 👤 Luigi Rovati
- 👤 Sergio Mascherpa
- 👤 Pierluigi Casula
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:34
CPC Classifications
C; C07; C07H; C07H13/00; C07H13/02; C07H13/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
20 words
A pharmaceutical preparation as defined by claim 1, which is present in the form of an aqueous sterilized injectable solution.
Claim 2
Dependent Claim
12 words
A pharmaceutical preparation as defined by claim 1, further comprising glucosamine hydrochloride.
Claim 3
Dependent Claim
21 words
A pharmaceutical preparation as defined by claim 1, which is present in the form of a capsule to be administered orally.
Claim 4
Independent Claim
38 words
A method for treating degenerative afflictions of the joints which comprises administering internally to the body a pharmaceutical preparation comprising a pharmaceutically acceptable carrier and from 100 mg to 1 gram of an active ingredient consisting of N-acetylglucosamine.
Claim 5
Dependent Claim
29 words
A method for treating degenerative afflictions of the joints as defined by claim 5, wherein said pharmaceutical preparation contains from about 200 to 500 mg. of said active ingredient.
Claim 6
Dependent Claim
59 words
A method for treating degenerative afflictions of the joints as defined by claim 5, wherein said pharmaceutical preparation further comprises from about 0.2 to 4 equivalents per mole of active ingredient of an inorganic salt selected from the group consisting of sodium sulfate, sodium, iodide, and mixtures thereof, said equivalents being based on the anionic constituent of the salt.
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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |