Patent US2419735A successfully refreshed from Google Patents.
US2419735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condensation products of diolefins with diarylamines and antioxidant compositions containing said products
Assignee: Goodrich Corp
•
Filing: 1941-09-25
•
Granted: 1947-04-29
•
Expires: 1961-09-25
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Sloan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:55
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2029642A
Cited
US2048781A
Cited
US2075549A
Cited
US2200756A
Cited
US2256189A
Cited
US2255386A
Cited
US2180936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-28 | 1950-10-28 | 1951-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-28 | 1954-10-28 | 1955-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-28 | 1958-10-28 | 1959-04-29 | $7700.00 | Window Closed / Lapsed |