Patent US3257419A successfully refreshed from Google Patents.
US3257419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1, 2, 3, 4-tetrahydro-1-(2-iminothio-6-benzo-thiazolyl)-2-thioxo-4, 4, 6-trimethylpyrimidines
Assignee: Monsanto Co
•
Filing: 1963-12-30
•
Granted: 1966-06-21
•
Expires: 1983-12-30
Abstract
No abstract record available.
Inventors
- 👤 Amico John J D
- 👤 Ching C Tung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:03
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025
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)
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |