US3054797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of 5-aminohexahydropyrimidines
Assignee: Commercial Solvents Corp
•
Filing: 1961-10-11
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Granted: 1962-09-18
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Expires: 1981-10-11
Abstract
No abstract record available.
Inventors
- 👤 Wilton O Bell
- 👤 Albert E Neckar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:45
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
IN A PROCESS FOR THE PRODUCTION OF 5-AMINO-HEXAHYDROPYRIMIDINES OF THE FORMULA:
Claim 2
Dependent Claim
11 words
IN A PROCESS FOR THE PRODUCTION OF 5-AMINO-HEXAHYDROPYRIMIDINES OF THE FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |