Patent US3275708A successfully refreshed from Google Patents.
US3275708A
Expired / Lapsed
US
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Phenolic adducts of diphenyloxides or biphenyls, with epoxy resins
Assignee: Dow Chemical Co
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Filing: 1961-10-02
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Granted: 1966-09-27
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Expires: 1981-10-02
Abstract
No abstract record available.
Inventors
- 👤 Harold R Bylsma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:08
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/62; C08G59/621; B; B32; B32B; B32B27/00; C07; C07C; C07C43/00; C07C43/02; C07C43/257; C07C43/295; C08L; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
THE RESINOUS COMPOSITION CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OF (A) A PHENOLIC ADDUCT OF (1) A CHLOROMETHYLATED AROMATIC COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
23 words
THE RESINOUS COMPOSITION CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OF (A) A PHENOLIC ADDUCT OF (1) A CHLOROMETHYLATED AROMATIC COMPOUND HAVING THE FORMULA:
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |