Patent US3775541A successfully refreshed from Google Patents.
US3775541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dihydrocinnamyl phenols useful as antimicrobial agents
Assignee: United States Department of Agriculture
•
Filing: 1972-05-25
•
Granted: 1973-11-27
•
Expires: 1992-05-25
Abstract
Abstract SUBSTANCES WHICH ARE SUBJECT TO MICROBIAL SPOILAGE ARE PRESERVED BY ADDITION OF A DIHYDROCINNAMYL PHENOL E.G., DIHYDRO-2-CINNAMYL-PHENOL, DIHYDRO-4-CINNAMYL-PHENOL, DIHYDRO-2-CINNAMYL-4-METHYLPHENOL, ETC.
Inventors
- 👤 L Jurd
- 👤 K Stevens
- 👤 A King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:09
CPC Classifications
C; C07; C07C; C07C39/00; C07C39/02; C07C39/06; A; A01; A01N; A01N31/00; A01N31/08; C11; C11D; C11D1/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |