US2671798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2, 2-diphenyl-3-methyl-4-chlorobutyronitrile and processes for preparing the same
Assignee: Merck and Co Inc
•
Filing: 1951-07-25
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Granted: 1954-03-09
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Expires: 1971-07-25
Abstract
No abstract record available.
Inventors
- 👤 Earl M Chamberlin
- 👤 Tishler Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:53
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/30; C07C255/00; C07C255/01; C07C255/32; C07C255/35
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
1 words
2,2-DIPHENYL-3-METHYL-4-CHLORO-BUTYRONITRILE.
References Cited (Backward Citations)
GB563665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-08 | 1957-09-07 | 1958-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-08 | 1961-09-07 | 1962-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-08 | 1965-09-07 | 1966-03-09 | $7700.00 | Window Closed / Lapsed |