US2700682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ketimines and process of preparing same
Assignee: Wyeth LLC
•
Filing: 1948-06-24
•
Granted: 1955-01-25
•
Expires: 1968-06-24
Abstract
No abstract record available.
Inventors
- 👤 Blomberg Richard Nelson
- 👤 William F Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:19
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/228; C10L1/2283
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
22 words
THE PROCESS FOR PREPARING IMINES COMPRISING REACTING A PRIMARY LOWER ALKYL AMINE IN THE LIQUID PHASE WITH A KETONE OF THE FORMULDA
Claim 2
Dependent Claim
22 words
THE PROCESS FOR PREPARING IMINES COMPRISING REACTING A PRIMARY LOWER ALKYL AMINE IN THE LIQUID PHASE WITH A KETONE OF THE FORMULDA
Claim 3
Dependent Claim
8 words
AS NEW COMPOUNDS, KETIMINES HAVING THE GENERAL FORMULA
Claim 4
Dependent Claim
8 words
AS NEW COMPOUNDS, KETIMINES HAVING THE GENERAL FORMULA
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-24 | 1958-07-26 | 1959-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-24 | 1962-07-26 | 1963-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-24 | 1966-07-26 | 1967-01-25 | $7700.00 | Window Closed / Lapsed |