US3000852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-(alkyl)-n'-(p-alkyl phenyl)-p-phenylenediamines as stabilizers for rubbers
Assignee: Uniroyal Inc
•
Filing: 1957-11-12
•
Granted: 1961-09-19
•
Expires: 1977-11-12
Abstract
No abstract record available.
Inventors
- 👤 Paul L Merz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:12
CPC Classifications
C; C11; C11B; C11B5/00; C11B5/0042; C11B5/005; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/18; C09; C09K; C09K15/00; C09K15/04; C09K15/16; C09K15/18; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
A COMPOUND REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
6 words
A COMPOUND REPRESENTED BY THE FORMULA
Claim 3
Dependent Claim
19 words
A COMPOSITION OF MATTER COMPRISING A SULFUR-VULCANIZABLE DIOLEFIN POLYMER RUBBER CONTAINING A COMPOUND AS SET FORTH IN CLAIM 2.
Claim 4
Dependent Claim
19 words
A COMPOSITION OF MATTER COMPRISING A SULFUR-VULCANIZABLE DIOLEFIN POLYMER RUBBER CONTAINING A COMPOUND AS SET FORTH IN CLAIM 6.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |