US2524866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of acetylenic alcohols in the vapor phase
Assignee: Publicker Ind Inc
•
Filing: 1947-11-14
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Granted: 1950-10-10
•
Expires: 1967-11-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Edwin V Winslow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:35
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/51; C07C45/511; C07C45/512
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A PROCESS FOR CONVERTING 1-ALKYNOLS HAVING AN ACTIVE HYDROGEN ATOM IN THE ONE-POSITION AND HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
18 words
A PROCESS FOR CONVERTING 1-ALKYNOLS HAVING AN ACTIVE HYDROGEN ATOM IN THE ONE-POSITION AND HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US1841055A
Cited
US1923569A
Cited
US1950441A
Cited
US2018065A
Cited
US2250558A
Cited
US2197956A
Cited
US2347955A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |