Patent US2831030A successfully refreshed from Google Patents.
US2831030A
Expired / Lapsed
US
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Composition of matter
Assignee: Universal Oil Products Co
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Filing: 1953-10-13
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Granted: 1958-04-15
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Expires: 1973-10-13
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Chenicek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:19
CPC Classifications
C; C11; C11B; C11B5/00; C11B5/0071; C07; C07C; C07C323/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
26 words
ALKYLTHIOMETHYL-4ALKOXYPHENOL IN WHICH THE ALKOXY RADICAL CONTAINS FROM 1 TO 5 CARBON ATOMS AND THE ALKYL RADICAL OF THE ALKYLTHIOMETHYL GROUP IS A LOWER ALKYL RADICAL.
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) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |