US3360415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam product and process
Assignee: GFC FOAM Corp A CORP OF DE
•
Filing: 1963-10-21
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Granted: 1967-12-26
•
Expires: 1983-10-21
Abstract
No abstract record available.
Inventors
- 👤 Hellman Carl
- 👤 Lodi John Bogdany
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:05
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/36; C08J9/40; C08J9/42; C08J2375/00; C08J2375/04; C08J2427/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A METHOD OF UNIFORMLY IMPREGNATIG AN OPEN CELL POLYURETHANE FOAM WEB WITH A POLYVINYL CHLORIDE PLASTISOL HAVING A VISCOSITY OF FROM ABOUT 250 TO ABOUT 1,000 CENTIPOISES WHICH METHOD COMPRISES PARTIALLY IMPREGNATING THE FOAM BY DEPOSITING THE PLASTISOL ON ONE SURFACE THEREOF APPLYING SUCTION TO THE OTHER SURFACE SO AS TO IMPREGNATE HALF OR MORE OF THE THICKNESS OF THE WEB AND THEREAFTER GUIDING THE PARTIALLY IMPREGNATED FOAM THROUGH PRESSURE APPLYING MEANS TO APPLY SUFFICIENT PRESSURE TO COMPLETE THE IMPREGNATION OF THE FOAM.
Claim 2
Independent Claim
83 words
A METHOD OF UNIFORMLY IMPREGNATIG AN OPEN CELL POLYURETHANE FOAM WEB WITH A POLYVINYL CHLORIDE PLASTISOL HAVING A VISCOSITY OF FROM ABOUT 250 TO ABOUT 1,000 CENTIPOISES WHICH METHOD COMPRISES PARTIALLY IMPREGNATING THE FOAM BY DEPOSITING THE PLASTISOL ON ONE SURFACE THEREOF APPLYING SUCTION TO THE OTHER SURFACE SO AS TO IMPREGNATE HALF OR MORE OF THE THICKNESS OF THE WEB AND THEREAFTER GUIDING THE PARTIALLY IMPREGNATED FOAM THROUGH PRESSURE APPLYING MEANS TO APPLY SUFFICIENT PRESSURE TO COMPLETE THE IMPREGNATION OF THE FOAM.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |