Patent US2692897A successfully refreshed from Google Patents.
US2692897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of acylamido diol compounds
Assignee: Parke Davis and Co LLC
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Filing: 1952-03-01
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Granted: 1954-10-26
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Expires: 1972-03-01
Abstract
No abstract record available.
Inventors
- 👤 George W Moersch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:42
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/02; C07D263/08; C07D263/10; C07D263/14; C07C; C07C233/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
PROCESS FOR THE PRODUCING OF A 1-PHENYL-2DICHLORACETAMIDOPROPANE-1,3 - DIOL COMPOUND HAVING THE FORMULA,
Claim 2
Dependent Claim
13 words
PROCESS FOR THE PRODUCING OF A 1-PHENYL-2DICHLORACETAMIDOPROPANE-1,3 - DIOL COMPOUND HAVING THE FORMULA,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-25 | 1958-04-26 | 1958-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-25 | 1962-04-26 | 1962-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-25 | 1966-04-26 | 1966-10-26 | $7700.00 | Window Closed / Lapsed |