US2846433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted pyridazines
Assignee: Goodrich Corp
•
Filing: 1955-09-20
•
Granted: 1958-08-05
•
Expires: 1975-09-20
Abstract
No abstract record available.
Inventors
- 👤 Charles J Pennino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:38
CPC Classifications
C; C07; C07D; C07D237/00; C07D237/02; C07D237/06; C07D237/10; C07D237/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOSITION HAVING THE STRUCTURE
Claim 2
Dependent Claim
5 words
A COMPOSITION HAVING THE STRUCTURE
References Cited (Backward Citations)
US2628181A
Cited
US2671086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |