US2875175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted thiocarbamyl-p-phenylenediamines as anti-ozone agents for rubber
Assignee: Bridgestone Firestone Inc
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Filing: 1954-10-15
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Granted: 1959-02-24
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Expires: 1974-10-15
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Ambelang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:19
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/39; C08K5/405; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
19 words
A SULFUR-VULCANIZED RUBBER COMPOSITION WHICH INCLUDES AS AN ANTIOZONE AGENT A SMALL AMOUNT OF A SUBSTANCE OF THE FORMULA
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) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |