Patent US3079399A successfully refreshed from Google Patents.
US3079399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted pyrrolidinones and methods of preparation
Assignee: Rohm and Haas Co
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Filing: 1960-05-12
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Granted: 1963-02-26
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Expires: 1980-05-12
Abstract
No abstract record available.
Inventors
- 👤 Lawrence J Exner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:27
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/18; C07D207/22; C07D207/24; C07D207/26; C07D209/00; C07D209/02; C07D209/44; C07D209/46; C07D209/52; C07D209/54; C07D209/56; C07D209/96
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
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
Claim 2
Dependent Claim
139 words
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
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) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |