US3156720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethylenically unsaturated derivatives of ortho-dihydric phenols
Assignee: Ingredion Inc
•
Filing: 1962-08-24
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Granted: 1964-11-10
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Expires: 1982-08-24
Abstract
No abstract record available.
Inventors
- 👤 Albert I Goldberg
- 👤 Fertig Joseph
- 👤 Skoultchi Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:49
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/52; C07C69/533; C07C69/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
THE ETHYLENICALLY UNSATURATED DERIVATIVES OF ORTHODIHYDRIC PHENOLS WHICH CORRESPOND TO THE FORMULA:
Claim 2
Dependent Claim
12 words
THE ETHYLENICALLY UNSATURATED DERIVATIVES OF ORTHODIHYDRIC PHENOLS WHICH CORRESPOND TO THE FORMULA:
References Cited (Backward Citations)
US2734087A
Cited
US2500011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |