US2769742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surfacing resin bodies
Assignee: PPG Industries Inc
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Filing: 1952-04-29
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Granted: 1956-11-06
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Expires: 1972-04-29
Abstract
No abstract record available.
Inventors
- 👤 Clarence H Helbing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:33
CPC Classifications
B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/3179; Y10T428/31855; Y10T428/31859; Y10T428/31862; Y10T428/3188; Y10T428/31895; Y10T428/31942; Y10T428/31949
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A METHOD OF FORMING A LAMINATED BODY WHICH COMPRISES SPREADING A SYRUP OF A CONDENSATION PRODUCT OF AN ALDEHYDE AND A COMPOUND OF A CLASS CONSISTING OF A TRIAZINE AND UREA UPON A SMOOTH IMPERMEABLE SUPPORTING SURFACE, DRYING THE SYRUP TO A SOLID STATE, APPLYINGF A LAYER OF A POLYMERIZABLE MIXTURE OF A COMPOUND CONTAINING THE GROUP >C=CH2 AND A POLYESTER OF AN ALPHA-BETA DICARBOXYLIC ETHYLENICALLY UNSATURATED ACID, AND CURING THE SANDWICH UPON THE SURFACE TO A HARD, COHERENT STATE AND STRIPPING OFF THE LAMINATE.
Claim 2
Independent Claim
85 words
A METHOD OF FORMING A LAMINATED BODY WHICH COMPRISES SPREADING A SYRUP OF A CONDENSATION PRODUCT OF AN ALDEHYDE AND A COMPOUND OF A CLASS CONSISTING OF A TRIAZINE AND UREA UPON A SMOOTH IMPERMEABLE SUPPORTING SURFACE, DRYING THE SYRUP TO A SOLID STATE, APPLYINGF A LAYER OF A POLYMERIZABLE MIXTURE OF A COMPOUND CONTAINING THE GROUP >C=CH2 AND A POLYESTER OF AN ALPHA-BETA DICARBOXYLIC ETHYLENICALLY UNSATURATED ACID, AND CURING THE SANDWICH UPON THE SURFACE TO A HARD, COHERENT STATE AND STRIPPING OFF THE LAMINATE.
References Cited (Backward Citations)
US2255313A
Cited
US2602037A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |