US3267053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenol-formaldehyde resin compositions
Assignee: Dow Chemical Co
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Filing: 1962-08-08
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Granted: 1966-08-16
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Expires: 1982-08-08
Abstract
No abstract record available.
Inventors
- 👤 Floyd B Nagle
- 👤 Elmer L Mcmaster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:45
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K5/103
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
78 words
A CURED COMPOSITION COMPRISING (1) A LIQUID, WATERINSOLUBLE CONDENSATION PRODUCT OF PHENOL AND FORMALDEHYDE, WHICH CONDENSATION PRODUCT IS IN AMOUNT SUFFICIENT, WHEN HARDENED, TO SET THE ENTIRE COMPOSITION INTO A RIGID SOLID MASS, (2) UP TO ABOUT 15 WEIGHT PERCENT BASED ON THE ENTIRE WEIGHT OF THE COMPOSITION OF ACIDIC HARDENING AGENT FOR SAID LIQUID, WATER-INSOLUBLE CONDENSATION PRODUCT AND (3) BETWEEN ABOUT 0.05 AND 3 WEIGHT PERCENT BASED ON THE ENTIRE WEIGHT OF THE COMPOSITION OF SORBITAN TRIOLEATE.
Claim 2
Dependent Claim
78 words
A CURED COMPOSITION COMPRISING (1) A LIQUID, WATERINSOLUBLE CONDENSATION PRODUCT OF PHENOL AND FORMALDEHYDE, WHICH CONDENSATION PRODUCT IS IN AMOUNT SUFFICIENT, WHEN HARDENED, TO SET THE ENTIRE COMPOSITION INTO A RIGID SOLID MASS, (2) UP TO ABOUT 15 WEIGHT PERCENT BASED ON THE ENTIRE WEIGHT OF THE COMPOSITION OF ACIDIC HARDENING AGENT FOR SAID LIQUID, WATER-INSOLUBLE CONDENSATION PRODUCT AND (3) BETWEEN ABOUT 0.05 AND 3 WEIGHT PERCENT BASED ON THE ENTIRE WEIGHT OF THE COMPOSITION OF SORBITAN TRIOLEATE.
Claim 3
Dependent Claim
14 words
THE COMPOSITION OF CLAIM 1, WHEREIN SAID ACIDIC HARDENING AGENT IS PARATOLUENE SULFONIC ACID.
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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |