US2853520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of ethynyl compounds to acetyl compounds
Assignee: Ohio State University Research Foundation
•
Filing: 1953-11-05
•
Granted: 1958-09-23
•
Expires: 1973-11-05
Abstract
No abstract record available.
Inventors
- 👤 Melvin S Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:23
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/26; B; B01; B01J; B01J31/00; B01J31/02; B01J31/06; B01J31/08; B01J31/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
A PROCESS OF HYDRATING ETHYNYL HYDROCARBONS HAVING A STRUCTURE OF:
Claim 2
Dependent Claim
10 words
A PROCESS OF HYDRATING ETHYNYL HYDROCARBONS HAVING A STRUCTURE OF:
References Cited (Backward Citations)
DE568209C
Cited
US1986044A
Cited
US2243332A
Cited
US2366007A
Cited
US2593417A
Cited
US2631127A
Cited
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 |