Patent US3255241A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3255241A Expired / Lapsed US ⏱️ 0.0 years remaining

(2-alkylidene acyl)phenoxy-and (2-alkylidene acyl)phenylmercaptocarboxylic acids

Assignee: Merck and Co Inc
•
Filing: 1961-12-06
•
Granted: 1966-06-07
•
Expires: 1981-12-06
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Everett M Schultz
  • 👤 James M Sprague

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 12:42
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/16; C07D295/18; C07D295/182; A; A61; A61K; A61K31/00; A61K31/185; A61K31/19; C07C; C07C323/00; C07C45/00; C07C45/27; C07C45/29; C07C45/292; C07C49/00; C07C49/76; C07C49/84; C07C51/00; C07C51/09; C07C51/16; C07C51/347; C07C51/353; C07C51/36; C07C51/363; C07C51/367; C07C51/373; C07C51/377; C07C51/41; C07C51/412; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C59/66; C07C59/68; C07C59/70; C07C59/76; C07C59/90; C07C65/00; C07C65/32; C07C65/40

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 5 words
A COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim 5 words
A COMPOUND OF THE FORMULA:

References Cited (Backward Citations)

US3010996A Cited
US3010995A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-06-06 1969-12-06 1970-06-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-06-06 1973-12-06 1974-06-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-06-06 1977-12-06 1978-06-07 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag