Patent US2778853A successfully refreshed from Google Patents.
US2778853A
Expired / Lapsed
US
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Deamination process
Assignee: Merck and Co Inc
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Filing: 1952-09-10
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Granted: 1957-01-22
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Expires: 1972-09-10
Abstract
No abstract record available.
Inventors
- 👤 Everett M Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:30
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/76; C07C49/84; C07C45/00; C07C45/61; C07C45/67; C07C45/673; C07C49/20; C07C49/213; C07C49/215; C07C49/82; C07C49/825
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A PROCESS FOR THE DEAMINATION OF A BETA-TERTIARY AMINO KETONE HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
14 words
A PROCESS FOR THE DEAMINATION OF A BETA-TERTIARY AMINO KETONE HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
US2550745A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |