Patent US2524865A successfully refreshed from Google Patents.
US2524865A
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Vapor phase conversion of 1-alkynols
Assignee: Publicker Ind Inc
•
Filing: 1947-11-14
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Granted: 1950-10-10
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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
2026-11-04 12:34
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/51; C07C45/511; C07C45/512; C07C47/00; C07C47/20; C07C47/21; C07C49/00; C07C49/20; C07C49/203
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)
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US1841055A
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US1950441A
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US2250558A
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US2197956A
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US2204157A
Cited
US2422991A
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US2386325A
Cited
US2399164A
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 |