US3049548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain alpha-hydrazino-imidazolepropionic acid derivatives
Assignee: Merck and Co Inc
•
Filing: 1961-01-23
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Granted: 1962-08-14
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Expires: 1981-01-23
Abstract
No abstract record available.
Inventors
- 👤 Sletzinger Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:25
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/54; C07D233/64; A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/41; A61K31/415; C07C; C07C205/00; C07C205/49; C07C205/50; C07C205/51
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) COMPOUNDS OF THE FORMULA-
Claim 2
Dependent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) COMPOUNDS OF THE FORMULA-
References Cited (Backward Citations)
US2955108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |