US3244668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized plastic
Assignee: Ethyl Corp
•
Filing: 1961-01-23
•
Granted: 1966-04-05
•
Expires: 1981-01-23
Abstract
No abstract record available.
Inventors
- 👤 Gordon G Knapp
- 👤 Calvin J Worrel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:20
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/315; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
A STABILIZING MIXTURE COMPRISING FROM 5 TO 95 WEIGHT PERCENT OF A COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
16 words
A STABILIZING MIXTURE COMPRISING FROM 5 TO 95 WEIGHT PERCENT OF A COMPOUND HAVING THE FORMULA:
References Cited (Backward Citations)
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Cited
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Cited
GB838547A
Cited
DE1087902B
Cited
US3074971A
Cited
US3069456A
Cited
US3052636A
Cited
US3085003A
Cited
US3085097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |