US3068198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synergistic antioxidant compositions
Assignee: Pennwalt Corp
•
Filing: 1960-12-29
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Granted: 1962-12-11
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Expires: 1980-12-29
Abstract
No abstract record available.
Inventors
- 👤 Paul G Haines
- 👤 Harry E Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:18
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/11; C07C37/20; C07C37/14; C08; C08K; C08K5/00; C08K5/04; C08K5/13; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A RUBBER COMPOSITION HAVING INCORPORATED THEREIN A MIXTURE IF BISPHENOLS HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
14 words
A RUBBER COMPOSITION HAVING INCORPORATED THEREIN A MIXTURE IF BISPHENOLS HAVING THE GENERAL 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) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |