US3598671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing foam plastic laminated structures
Assignee: Individual
•
Filing: 1968-07-24
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Granted: 1971-08-10
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Expires: 1988-07-24
Abstract
Abstract A METHOD OF PREPARING FOAM PLAXTIC LAMINATED STRUCTURES WHEREIN THE REACTIVE COMPONENTS NECESSARY TO FORM A PLASTIC FOAM ARE SEPARATELY APPLIED TO OPPOSED SURFACES OF A BASE MATERIAL WHEREBY, WHEN THE SAID SURFACES ARE BROUGHT INTO PROXIMITY TO ONE ANOTHER, THE DIFFERENT REACTIVE COMPONENTS THEREON WILL INTERMIX AND REACT TO FORM AN ADHERENT FOAM OF PRESELECTED DENSITY AND THICKNESS THEREBETWEEN.
Inventors
- 👤 Harold Wortman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:45
CPC Classifications
B; B32; B32B; B32B27/00; B29; B29C; B29C44/00; B29C44/20; B29C44/32; B29C44/328; B29L; B29L2007/00; B29L2009/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |