US2674598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-amino-4-methyl-6-alkylamino-pyrimidines and salts thereof
Assignee: Monsanto Chemicals Ltd
•
Filing: 1952-01-17
•
Granted: 1954-04-06
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Expires: 1972-01-17
Abstract
No abstract record available.
Inventors
- 👤 Lucas P Kyrides
- 👤 Ferdinand B Zienty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:04
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/46; C07D239/48; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A COMPOUND OF THE CLASS CONSISTING OF A FREE BASE AND ITS SALTS, SAID FREE BASE HAVING THE STRUCTURE
Claim 2
Dependent Claim
19 words
A COMPOUND OF THE CLASS CONSISTING OF A FREE BASE AND ITS SALTS, SAID FREE BASE HAVING THE STRUCTURE
References Cited (Backward Citations)
US2139870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |