US2606922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Etherified phenyl aliphatic acids and their salts
Assignee: Merck Sharp & Dohme LLC
•
Filing: 1949-12-03
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Granted: 1952-08-12
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Expires: 1969-12-03
Abstract
No abstract record available.
Inventors
- 👤 Papa Domenick
- 👤 Klingsberg Erwin
- 👤 Schwenk Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:52
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/54; C07C; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/54; C07D213/55
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
COMPOUND OF THE GENERAL FORMULA
Claim 2
Dependent Claim
5 words
COMPOUND OF THE GENERAL 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) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |