Patent US489780A successfully refreshed from Google Patents.
Patent US3035014A successfully refreshed from Google Patents.
US3035014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel antioxidants and antiozonants
Assignee: Pennwalt Corp
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Filing: 1960-09-21
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Granted: 1962-05-15
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Expires: 1980-09-21
Abstract
No abstract record available.
Inventors
- 👤 Ivan C Popoff
- 👤 Harry E Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:48
CPC Classifications
C; C07; C07C; C07C323/00; C07C323/23; C07C323/24; C07C323/25; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/18; C08K5/36; C08K5/37; C08K5/375; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
NOVEL COMPOUNDS HAVING THE STRUCTURE
Claim 2
Dependent Claim
20 words
ELASTOMERIC MATERIALS CONTAINING FROM ABOUT 0.75 TO ABOUT 3% BY WEIGHT OF THE ELASTOMER OF THE COMPOUNDS OF CLAIM 2.
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) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |