US3002000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1,2-alkylene-dihydropyrimidone-6, and 1,2-alkylene-imidazolinones-(5)
Assignee: Bayer AG
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Filing: 1959-10-05
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Granted: 1961-09-26
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Expires: 1979-10-05
Abstract
No abstract record available.
Inventors
- 👤 Tietze Ernst
- 👤 Petersen Siegfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:46
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
8 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF
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) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |