US2703333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3-methyl-3-hydroxy-2-butanil and method for preparing same
Assignee: Airco Inc
•
Filing: 1954-04-21
•
Granted: 1955-03-01
•
Expires: 1974-04-21
Abstract
No abstract record available.
Inventors
- 👤 Daniel C Rowlands
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:06
CPC Classifications
C; C07; C07D; C07D413/00; C07D413/02; C07D413/06; C07C; C07C231/00; C07C231/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
3 words
THE COMPOUND 3-METHYL-3-HYDROXY-2-BUTANIL.
Claim 2
Dependent Claim
3 words
THE COMPOUND 3-METHYL-3-HYDROXY-2-BUTANIL.
Claim 3
Dependent Claim
27 words
A PROCESS FOR PREPARING THE NOVEL COMPOUND 3METHYL-3-HYDROXY-2-BUTANIL WHICH COMPRISES REACTING ANILINE WITH 3-METHYL-1-BUTYN-3-OL IN THE PRESENCE OF A CATALYST MIXTURE COMPRISING MERCURIC OXIDE AND BORON TRIFLUORIDE-ETHERATE.
Claim 4
Dependent Claim
27 words
A PROCESS FOR PREPARING THE NOVEL COMPOUND 3METHYL-3-HYDROXY-2-BUTANIL WHICH COMPRISES REACTING ANILINE WITH 3-METHYL-1-BUTYN-3-OL IN THE PRESENCE OF A CATALYST MIXTURE COMPRISING MERCURIC OXIDE AND BORON TRIFLUORIDE-ETHERATE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-28 | 1958-08-30 | 1959-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-28 | 1962-08-30 | 1963-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-28 | 1966-08-30 | 1967-03-01 | $7700.00 | Window Closed / Lapsed |