Patent US2957885A successfully refreshed from Google Patents.
US2957885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aminosubstituted heterocyclic compounds
Assignee: Rohm and Haas Co
•
Filing: 1958-05-14
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Granted: 1960-10-25
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Expires: 1978-05-14
Abstract
No abstract record available.
Inventors
- 👤 Newman M Bortnick
- 👤 Marian F Fegley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:35
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 GROUP CONSISTING OF THE COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
17 words
AS A COMPOSITION OF MATTER, A MEMBER FROM THE GROUP CONSISTING OF THE COMPOUND HAVING THE FORMULA
Claim 3
Dependent Claim
9 words
AS A COMPOSITION OF MATTER, 5-BUTYLAMINO-2,3,5,6TETRAHYDRO-5,7,7-TRIMETHYL-(7H) - IMIDAZO(1,2-A) PYRROLE.
Claim 4
Dependent Claim
9 words
AS A COMPOSITION OF MATTER, 5-BUTYLAMINO-2,3,5,6TETRAHYDRO-5,7,7-TRIMETHYL-(7H) - IMIDAZO(1,2-A) PYRROLE.
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) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |