US3755257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baking enamel vehicle comprising the reaction product of phenol, formaldehyde and an oxazoline
Assignee: IMC Chemical Group Inc
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Filing: 1971-09-30
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Granted: 1973-08-28
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Expires: 1991-09-30
Abstract
Abstract An improved vehicle for the formulation of baking enamels obtained by reacting an oxazoline with a member selected from the group consisting of formaldehyde, and phenol.
Inventors
- 👤 J Hunsucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:44
CPC Classifications
C; C08; C08G; C08G4/00; C08G14/00; C08G14/02; C08G14/04; C08G14/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
15 words
The compound of claim 1 wherein R3 and R4 of said oxazoline are methyl groups.
Claim 2
Dependent Claim
15 words
The compound of claim 1 wherein R3 and R4 of said oxazaline are hydroxymethyl groups.
Claim 3
Dependent Claim
18 words
The compound of claim 1 wherein R3 and R4 of said oxazoline are represented by the formula RCH2COOCH2-,
Claim 4
Dependent Claim
22 words
The compound of claim 1 wherein R3 of said oxazoline is methyl or ethyl and R4 is represented by the formula RCH2COOCH2-.
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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |