US2667440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized aqueous solutions of paraminosalicylic acid salts
Assignee: Individual
•
Filing: 1950-12-08
•
Granted: 1954-01-26
•
Expires: 1970-12-08
Abstract
No abstract record available.
Inventors
- 👤 Roger G Douris
- 👤 Jacques M Bory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:29
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0019; A61K47/00; A61K47/06; A61K47/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A HEAT STERILIZER AQUEOUS SOLUTION FOR INTRAVENOUS INJECTION, WHICH CONTAINS 0.5 TO 20 PER CENT BY WEIGHT OF SODIUM SALT OF PARAAMINOSALICYLIC ACID TOGETHER WITH 0.01 TO 1 PER CENT BY WEIGHT OF SODIUM FORMALDEHYDE-SULFOXYLATE.
Claim 2
Dependent Claim
35 words
A HEAT STERILIZER AQUEOUS SOLUTION FOR INTRAVENOUS INJECTION, WHICH CONTAINS 0.5 TO 20 PER CENT BY WEIGHT OF SODIUM SALT OF PARAAMINOSALICYLIC ACID TOGETHER WITH 0.01 TO 1 PER CENT BY WEIGHT OF SODIUM FORMALDEHYDE-SULFOXYLATE.
References Cited (Backward Citations)
US2540785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |