Patent US4889116A successfully refreshed from Google Patents.
Patent US2601284A successfully refreshed from Google Patents.
US2601284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat resistant panel
Assignee: United States Plywood Corp
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Filing: 1947-01-18
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Granted: 1952-06-24
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Expires: 1967-01-18
Abstract
No abstract record available.
Inventors
- 👤 Charles B Hemming
- 👤 Ray L Overholt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:23
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/10; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31688; Y10T428/31692; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31942; Y10T428/31949; Y10T428/31957
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
AS A NEW ARTICLE OF MANUFACTURE, A LOW PRESSURE LAMINATED MATERIAL COMPRISING A WOOD BASE MEMBER, A METAL SHEET, A WOOD VENEER, AND AN ADHESIVE COMPRISING POLYVINYL BUTYRAL MIXED WITH PHENOL FORMALDEHYDE; SAID BASE MEMBER AND SAID VENEER EACH BEING DIRECTLY SECURED AT ONE FACE THEREOF TO AN OPPOSITE SURFACE OF SAID METAL SHEET BY SAID ADHESIVE; AND A HEAT RESISTANT COATING APPLIED TO THE OTHER FACE OF SAID VENEER AND COMPRISING APPROXIMATELY 65 PARTS BY WEIGHT OF A MONOMERIC FORM OF ORGANIC ESTER OF ALLYL ALCOHOL, APPROXIMATELY 35 PARTS BY WEIGHT OF METHYL METHACRYLATE, AND APPROXIMATELY 2 PARTS BY WEIGHT OF TERTIARY BUTYL HYDROPEROXIDE.
Claim 2
Dependent Claim
105 words
AS A NEW ARTICLE OF MANUFACTURE, A LOW PRESSURE LAMINATED MATERIAL COMPRISING A WOOD BASE MEMBER, A METAL SHEET, A WOOD VENEER, AND AN ADHESIVE COMPRISING POLYVINYL BUTYRAL MIXED WITH PHENOL FORMALDEHYDE; SAID BASE MEMBER AND SAID VENEER EACH BEING DIRECTLY SECURED AT ONE FACE THEREOF TO AN OPPOSITE SURFACE OF SAID METAL SHEET BY SAID ADHESIVE; AND A HEAT RESISTANT COATING APPLIED TO THE OTHER FACE OF SAID VENEER AND COMPRISING APPROXIMATELY 65 PARTS BY WEIGHT OF A MONOMERIC FORM OF ORGANIC ESTER OF ALLYL ALCOHOL, APPROXIMATELY 35 PARTS BY WEIGHT OF METHYL METHACRYLATE, AND APPROXIMATELY 2 PARTS BY WEIGHT OF TERTIARY BUTYL HYDROPEROXIDE.
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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) | 1955-06-24 | 1955-12-24 | 1956-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-24 | 1959-12-24 | 1960-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-24 | 1963-12-24 | 1964-06-24 | $7700.00 | Window Closed / Lapsed |