US2790010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis of meta-substituted phenols
Assignee: Occidental Chemical Corp
•
Filing: 1952-12-18
•
Granted: 1957-04-23
•
Expires: 1972-12-18
Abstract
No abstract record available.
Inventors
- 👤 Alvin F Shepard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:51
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
2 words
3,5-DIISOPROPYL PHENOL.
Claim 2
Dependent Claim
2 words
3,5-DIISOPROPYL PHENOL.
References Cited (Backward Citations)
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US2514419A
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FR968209A
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US2664447A
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US2573947A
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BE503546A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |