US3314975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flavylium compounds and methods of using them
Assignee: Individual
•
Filing: 1963-12-26
•
Granted: 1967-04-18
•
Expires: 1983-12-26
Abstract
No abstract record available.
Inventors
- 👤 Jurd Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:28
CPC Classifications
C; C07; C07D; C07D311/00; C07D311/02; C07D311/04; C07D311/58; C07D311/60; A; A23; A23L; A23L5/00; A23L5/40; A23L5/42; A23L5/47; C07D311/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A 3-PHENOXY FLAVYLIUM SALT OF THE STRUCTURE-
Claim 2
Dependent Claim
7 words
A 3-PHENOXY FLAVYLIUM SALT OF THE STRUCTURE-
References Cited (Backward Citations)
US2947760A
Cited
US3147280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |