US3702331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antiozonants
Assignee: Security Chemicals Inc
•
Filing: 1970-07-07
•
Granted: 1972-11-07
•
Expires: 1990-07-07
Abstract
Abstract THE INVENTION REALTES TO NOVEL N-SUBSTITUTED DIMETHYL PYRROLES FOR USE AS ANTIOZONANTS IN RUBBER.
Inventors
- 👤 Elmer A Tike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:15
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3415; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 0
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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) | 1975-11-07 | 1976-05-08 | 1976-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-07 | 1980-05-08 | 1980-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-07 | 1984-05-08 | 1984-11-07 | $7700.00 | Window Closed / Lapsed |