US2596631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acylated amino acid silver salts
Assignee: Schieffelin and Co
•
Filing: 1948-06-14
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Granted: 1952-05-13
•
Expires: 1968-06-14
Abstract
No abstract record available.
Inventors
- 👤 Francis M Whitacre
- 👤 Dina Van Praag
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:32
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/45
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
AS A CHEMOTHERAPEUTIC AGENT ACTIVE AGAINST PATHOGENIC MICRO-ORGANISMS, A SILVER SALT OF AN ACYLATED ESSENTIAL SULPHUR-CONTAINING ALPHA-AMINO MONOCARBOXYLIC ACID OF THE FORMULA
Claim 2
Dependent Claim
22 words
AS A CHEMOTHERAPEUTIC AGENT ACTIVE AGAINST PATHOGENIC MICRO-ORGANISMS, A SILVER SALT OF AN ACYLATED ESSENTIAL SULPHUR-CONTAINING ALPHA-AMINO MONOCARBOXYLIC ACID OF THE FORMULA
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) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |