US4987272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dipropargyl ether of alpha, alpha'-bis (4-hydroxypenyl)-paradiisopropylbenzene
Assignee: Resolution Performance Products LLC
•
Filing: 1989-07-28
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Granted: 1991-01-22
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Expires: 2009-07-28
Abstract
Abstract Novel dipropargyl ether of alpha, alpha'-bis(4-hydroxyphenyl)-para-diisopropylbenzene is useful in preparing resins having desirable properties as laminates and the like.
Inventors
- 👤 Anthony M. Pigneri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:23
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/20; C07C43/215; C08; C08F; C08F38/00; H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/032; H05K1/0326
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A compound of Formula I ##STR3##
Claim 2
Dependent Claim
6 words
A compound of Formula I ##STR3##
References Cited (Backward Citations)
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Cited
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Cited
GB1149697A
Cited
US3594175A
Cited
US4226800A
Cited
EP0293768A1
Cited
WO1988009782A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-01-21 | 1994-07-23 | 1995-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-21 | 1998-07-23 | 1999-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-21 | 2002-07-23 | 2003-01-22 | $7700.00 | Window Closed / Lapsed |