Patent US2853529A successfully refreshed from Google Patents.
US2853529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of acetals
Assignee: —
•
Filing: —
•
Granted: 1958-09-23
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Expires: 1975-09-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:31
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/30; C07C43/303; C07C41/00; C07C41/48; C07C41/50; C07C41/56; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/72; C07C45/75; C07C47/00; C07C47/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
PROCESS FOR PRODUCING ACETALS OF CROTONALDEHYDE FROM A BUTADIENTY ETHER SELECTED FROM THE GROUP CONSISTING OF BUTADIENYL ETHYL ETHER AND BUTADIENYL METHYL ETHER WHICH COMPRISES REACTING SAID BUTADIENYL ETHER AT ATMOSPHERIC PRESSURE, IN THE ABSENCE OF WATER, AND AT A TEMPERATURE OF ABOUT 30*C. WITH AN ALOCHOL SELECTED FROM THE GROUP OF UNIVALENT SATURATED ALIPHATIC ALCOHOLS CONSISTING OF ETHYL ALCOHOL, METHYL ALCOHOL, BUTYL ALCOHOL AND ISOPROPY ALCOHOL.
Claim 2
Dependent Claim
67 words
PROCESS FOR PRODUCING ACETALS OF CROTONALDEHYDE FROM A BUTADIENTY ETHER SELECTED FROM THE GROUP CONSISTING OF BUTADIENYL ETHYL ETHER AND BUTADIENYL METHYL ETHER WHICH COMPRISES REACTING SAID BUTADIENYL ETHER AT ATMOSPHERIC PRESSURE, IN THE ABSENCE OF WATER, AND AT A TEMPERATURE OF ABOUT 30*C. WITH AN ALOCHOL SELECTED FROM THE GROUP OF UNIVALENT SATURATED ALIPHATIC ALCOHOLS CONSISTING OF ETHYL ALCOHOL, METHYL ALCOHOL, BUTYL ALCOHOL AND ISOPROPY ALCOHOL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |