Patent US2904596A successfully refreshed from Google Patents.
US2904596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of tertiary acetylenic
Assignee: —
•
Filing: —
•
Granted: 1959-09-15
•
Expires: 1976-09-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:02
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/36; C07C29/38; C07C29/42; C07C41/00; C07C41/01; C07C41/05; C07C41/06; C07C43/00; C07C43/02; C07C43/03; C07C43/14; C07C43/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A PROCESS FOR THE PRODUCTION OF TERITARY ACETYLENIC ALCOHOLS WHICH COMPRISES REACTING ACETYLENE WITH A KETONE UNDER SUBSTANTIALLY AUHYDROUS CONDITIONS AND IN THE PRESENCE OF AN ALKALI METAL ALKOXYETHOXIDE HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
33 words
A PROCESS FOR THE PRODUCTION OF TERITARY ACETYLENIC ALCOHOLS WHICH COMPRISES REACTING ACETYLENE WITH A KETONE UNDER SUBSTANTIALLY AUHYDROUS CONDITIONS AND IN THE PRESENCE OF AN ALKALI METAL ALKOXYETHOXIDE HAVING THE STRUCTURAL FORMULA
References Cited (Backward Citations)
US1712830A
Cited
US2161191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |