US3045016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6-hydrazinopyrimidine derivatives
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1959-09-08
•
Granted: 1962-07-17
•
Expires: 1979-09-08
Abstract
No abstract record available.
Inventors
- 👤 Miller George William
- 👤 Rose Francis Leslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:45
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/32; C07D239/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
2 words
2-PHENYL-4-LOWER ALKYL-6-HYDRAZINOPYRIMIDINE.
Claim 2
Dependent Claim
2 words
2-PHENYL-4-LOWER ALKYL-6-HYDRAZINOPYRIMIDINE.
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) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |