US3574766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of beta-methylmercaptopropionaldehyde
Assignee: Glanzstoff AG
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Filing: 1968-10-03
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Granted: 1971-04-13
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Expires: 1988-10-03
Abstract
Abstract PROCESS FOR PRODUCING B-METHYLMERCAPTOPROPIONALDEHYDE IN HIGH YIELDS BY REACTING ACROLEIN WITH METHYLMERCAPTAN IN THE PRESENCE OF THE CATALYST R3XY WHERE EACH R IS A MONOVALENT ORGANIC RADICAL, X IS PHOSPHOROUS, ARSENIC OR ANTIMONY AND Y IS OXYGEN OR SULFUR.
Inventors
- 👤 Gerhard Meyer
- 👤 Helmut Magerlein
- 👤 Hans-Dieter Rupp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:05
CPC Classifications
C; C07; C07C; C07C323/00
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) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |