US3248428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aldolization process
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1961-12-22
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Granted: 1966-04-26
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Expires: 1981-12-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter James Porter
- 👤 Wingate James Andrew
- 👤 Hanan James Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:37
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/16; B01J23/32; B01J23/34; B01J23/24; B01J23/28; C; C07; C07C; C07C49/00; C07C49/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A PROCESS FOR PRODUCING AN ALPHA, BETA-UNSATURATED CARBONYL COMPOUND WHICH COMPRISES CONTACTING A LIQUID FEED COMPRISING A C2 TO C20 CARBONYL COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
25 words
A PROCESS FOR PRODUCING AN ALPHA, BETA-UNSATURATED CARBONYL COMPOUND WHICH COMPRISES CONTACTING A LIQUID FEED COMPRISING A C2 TO C20 CARBONYL COMPOUND HAVING THE FORMULA:
References Cited (Backward Citations)
US2309650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |