Patent US2724727A successfully refreshed from Google Patents.
US2724727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bivanillyl and method of making same
Assignee: Sulphite Products Corp
•
Filing: 1952-08-08
•
Granted: 1955-11-22
•
Expires: 1972-08-08
Abstract
No abstract record available.
Inventors
- 👤 Irwin A Pearl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:26
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/20; C07C43/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
THE METHOD OF PREPARING THE COMPOUND BIVANILLYL WHICH COMPRISES REDUCING VANILLIL WITH A REDUCING AGENT CONTAINING ZINC IN THE PRESENCE OF HYDROCHLORIC ACID, AND RECOVERING THE BIVANILLYL PRODUCED.
Claim 2
Independent Claim
28 words
THE METHOD OF PREPARING THE COMPOUND BIVANILLYL WHICH COMPRISES REDUCING VANILLIL WITH A REDUCING AGENT CONTAINING ZINC IN THE PRESENCE OF HYDROCHLORIC ACID, AND RECOVERING THE BIVANILLYL PRODUCED.
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) | 1958-11-21 | 1959-05-23 | 1959-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-21 | 1963-05-23 | 1963-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-21 | 1967-05-23 | 1967-11-22 | $7700.00 | Window Closed / Lapsed |