Patent US3838155A successfully refreshed from Google Patents.
US3838155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-aryl 5-(or 6-)methylpyrid-2-ones
Assignee: Rohm and Haas Co
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Filing: 1972-08-17
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Granted: 1974-09-24
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Expires: 1992-08-17
Abstract
Abstract NOVEL COMPOUND BELONGING TO THE CLASS OF 1-ARYL-3CARBOXY-METHYLPYRID-2-ONE. THESE COMPOUNDS PROCESS BIOLOGICAL ACTIVITY AND IN PARTICULAR ARE PLANT GROWTH REGULATORS.
Inventors
- 👤 M Seidel
- 👤 Nulty P Mc
- 👤 H Bayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:41
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; C07D213/79; C07D213/80; C07D213/84; C07D213/85
Claims Analysis
Total Claims: 0
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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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |