Patent US2993047A successfully refreshed from Google Patents.
US2993047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condensed heterocyclic compounds
Assignee: Rohm and Haas Co
•
Filing: 1958-03-03
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Granted: 1961-07-18
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Expires: 1978-03-03
Abstract
No abstract record available.
Inventors
- 👤 Newman M Bortnick
- 👤 Marian F Fegley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:59
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
17 words
AS A COMPOSITION OF MATTER, A MEMBER FROM THE CLASS CONSISTING OF A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
17 words
AS A COMPOSITION OF MATTER, A MEMBER FROM THE CLASS CONSISTING OF A COMPOUND HAVING THE FORMULA
Claim 3
Dependent Claim
7 words
AS A COMPOSITION OF MATTER, 6,8,8-TRIMETHYL-2,3,4, 6,7,8-HEXAHYDROPYRROLO(1,2A)-PYRILMIDINE.
Claim 4
Dependent Claim
7 words
AS A COMPOSITION OF MATTER, 6,8,8-TRIMETHYL-2,3,4, 6,7,8-HEXAHYDROPYRROLO(1,2A)-PYRILMIDINE.
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) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |