US2838439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injectable local anesthetic solutions comprising mixtures of soluble procaine and butethamine salts
Assignee: Individual
•
Filing: 1955-10-03
•
Granted: 1958-06-10
•
Expires: 1975-10-03
Abstract
No abstract record available.
Inventors
- 👤 Samuel D Goldberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:28
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/21; A61K31/215; A61K31/235; A61K31/24; A61K31/245; A61K33/00; A61K33/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
AS A NEW COMPOSITION OF MATTER, USEFUL IN MEDICINE AS A LOCAL ANESTHETIC AGENT, AN AQUEOUS SOLUTION CONTAINING, IN SYNERGISTIC COMBINATION, A SOLUBLE PROCAINE SALT AND A SOLUBLE BUTEHTAMINE SALT, SO PROPORTIONATE THAT THERE IS PRESENT IN THE MIXTURE, PER UNIT WEIGHT OF BUTETHAMINE, ONE TO THREE OF WEIGHT OF PROCAINE.
Claim 2
Dependent Claim
51 words
AS A NEW COMPOSITION OF MATTER, USEFUL IN MEDICINE AS A LOCAL ANESTHETIC AGENT, AN AQUEOUS SOLUTION CONTAINING, IN SYNERGISTIC COMBINATION, A SOLUBLE PROCAINE SALT AND A SOLUBLE BUTEHTAMINE SALT, SO PROPORTIONATE THAT THERE IS PRESENT IN THE MIXTURE, PER UNIT WEIGHT OF BUTETHAMINE, ONE TO THREE OF WEIGHT OF PROCAINE.
References Cited (Backward Citations)
GB668502A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |