US2842459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primers for vinyl resin coating
Assignee: Dennis Chemical Co Inc
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Filing: 1955-08-01
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Granted: 1958-07-08
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Expires: 1975-08-01
Abstract
No abstract record available.
Inventors
- 👤 Gollub Frank
- 👤 Marvin S Wool
- 👤 William D Berberich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:54
CPC Classifications
C; C09; C09D; C09D163/00; C09D133/00; C09D133/04; C09D133/06; C09D133/10; C09D133/12; C08; C08L; C08L63/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
THE METHOD OF BONDING A VINYL RESIN COATING TO A SURFACE WHICH COMPRISES APPLYING A PRIMER TO SAID SURFACE, SAID PRIMER COMPRISING A MIXTURE OF A METHYL METHACRYLATE POLYMER AND AN UNESTERIFIED EPOXY RESIN DISSOLVED IN AN ORGANIC SOLVENT, THE RATIO OF SAID METHACRYLATE POLYMER TO SAID EPOXY RESIN BEING BETWEEN APPROXIMATELY 15:85 AND 99:1, VOLATILIZING SAID SOLVENT, APPLYING A VINYL RESIN DISPERSION TO THE PRIMED SURFACE, AND THEREAFTEER HEATING THE DISPERSION.
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) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |