US3006883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a phenol formaldehyde acetone resin
Assignee: HOWARD SMITH PAPER MILLS Ltd
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Filing: 1958-10-24
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Granted: 1961-10-31
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Expires: 1978-10-24
Abstract
No abstract record available.
Inventors
- 👤 Emile A Cambron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:57
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A METHOD OF PRODUCING A THERMOSETTING LAMINATING RESIN COMPRISING REACTION ACETONE AND FORMALDEHYDE IN ALKALINE SOLUTION TO FORM A MONOMERIC MONOMETHYLOL DERIVATIVE THEREOF, AND REACTING SAID DERIVATE WITH PHENOL AND THEREAFTER WITH ADDITIONAL FORMALDEHYDE TO FORM THE THERMOSETTING RESIN.
Claim 2
Independent Claim
39 words
A METHOD OF PRODUCING A THERMOSETTING LAMINATING RESIN COMPRISING REACTION ACETONE AND FORMALDEHYDE IN ALKALINE SOLUTION TO FORM A MONOMERIC MONOMETHYLOL DERIVATIVE THEREOF, AND REACTING SAID DERIVATE WITH PHENOL AND THEREAFTER WITH ADDITIONAL FORMALDEHYDE TO FORM THE THERMOSETTING RESIN.
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) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |