US2537892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of 2-benzamido-3-carboxymethylmercapto-propanoic acid
Assignee: Merck and Co Inc
•
Filing: 1944-09-16
•
Granted: 1951-01-09
•
Expires: 1964-09-16
Abstract
No abstract record available.
Inventors
- 👤 Stanton A Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:43
CPC Classifications
C; C07; C07D; C07D495/00; C07D495/02; C07D495/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
AN A NEW COMPOUND 2-BENZAMIDO-3-CARBOXYMETHYLMERCAPTO-PROPANIC DIMETHYL ESTER.
Claim 2
Dependent Claim
7 words
AN A NEW COMPOUND 2-BENZAMIDO-3-CARBOXYMETHYLMERCAPTO-PROPANIC DIMETHYL ESTER.
References Cited (Backward Citations)
US66563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |