US2688580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming fiber glass reinforced resin sheet
Assignee: Zenith Plastics Co
•
Filing: 1950-11-04
•
Granted: 1954-09-07
•
Expires: 1970-11-04
Abstract
No abstract record available.
Inventors
- 👤 Fingerhut Solomon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:03
CPC Classifications
B; B32; B32B; B32B27/00; B29; B29C; B29C70/00; B29C70/003; B29C70/0035; B29K; B29K2309/00; B29K2309/08; Y; Y10; Y10T; Y10T428/00; Y10T428/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
THE METHOD OF FORMING A PLASTIC LAMINATE, COMPRISING THE STEPS OF: DEPOSITING FIBERS IN RANDOM ARRANGEMENT OVER OTHER FIBERS SO DEPOSITED TO FORM A LOOSE FIBROUS MAT, COATING THE FIBERS OF SAID MAT WITH A COLORED BINDING AGENT, PLACING AND HOLDING THE MAT AGAINST THE BOTTOM SURFACE OF A MOLD, POURING A LIQUID THERMOSETTING RESIN OVER SAID MAT TO FILL THE INTERSTICES OF AND COVER THE SAME AND TO COMPLETELY ENCOMPASS ALL THE FIBERS THEREOF EXCEPT THOSE IN CONTACT WITH SAID MOLD SURFACE, AND CURING THE RESIN BY HEAT AND PRESSURE TO FORM A SOLID LAMINATE.
Claim 2
Independent Claim
96 words
THE METHOD OF FORMING A PLASTIC LAMINATE, COMPRISING THE STEPS OF: DEPOSITING FIBERS IN RANDOM ARRANGEMENT OVER OTHER FIBERS SO DEPOSITED TO FORM A LOOSE FIBROUS MAT, COATING THE FIBERS OF SAID MAT WITH A COLORED BINDING AGENT, PLACING AND HOLDING THE MAT AGAINST THE BOTTOM SURFACE OF A MOLD, POURING A LIQUID THERMOSETTING RESIN OVER SAID MAT TO FILL THE INTERSTICES OF AND COVER THE SAME AND TO COMPLETELY ENCOMPASS ALL THE FIBERS THEREOF EXCEPT THOSE IN CONTACT WITH SAID MOLD SURFACE, AND CURING THE RESIN BY HEAT AND PRESSURE TO FORM A SOLID LAMINATE.
References Cited (Backward Citations)
US2417384A
Cited
US1881932A
Cited
US2176837A
Cited
US2206059A
Cited
US2215061A
Cited
US2204859A
Cited
US2263900A
Cited
US2315329A
Cited
US2311613A
Cited
US2450902A
Cited
US2495636A
Cited
US2566960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-06 | 1958-03-08 | 1958-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-06 | 1962-03-08 | 1962-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-06 | 1966-03-08 | 1966-09-07 | $7700.00 | Window Closed / Lapsed |