US2744848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Making fiberboard of uniform density and thickness
Assignee: Long-Bell Lumber Co
•
Filing: 1954-03-29
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Granted: 1956-05-08
•
Expires: 1974-03-29
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Mottet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:13
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/10; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
THE METHOD OF MAKING COMPOSITE PRESSED PRODUCTS OF UNIFORM DENSITY AND THICKNESS WHICH COMPRISES PROVIDING AN ARCUATE RESILIENT PLATE, DEPOSITING PARTICLES OF MATERIAL ON THE PLATE TO FORM A MAT THEREON, FLEXING THE PLATE UNTIL IT IS SUBSTANTIALLY FLAT, REMOVING PARTICLES FROM THE SURFACE OF THE MAT UNTIL THE MAT HAS A PREDETERMINED THICKNESS WHILE HOLDING THE PLATE SUBSTANTIALLY FLAT, RELEASING THE PLATE WHEREUPON BECAUSE OF ITS RESILIENCY IT REASSUMES ITS ARCUATE CONFIGURATION, AND PRESSING THE MAT TO A PREDETERMINED DENSITY.
Claim 2
Independent Claim
81 words
THE METHOD OF MAKING COMPOSITE PRESSED PRODUCTS OF UNIFORM DENSITY AND THICKNESS WHICH COMPRISES PROVIDING AN ARCUATE RESILIENT PLATE, DEPOSITING PARTICLES OF MATERIAL ON THE PLATE TO FORM A MAT THEREON, FLEXING THE PLATE UNTIL IT IS SUBSTANTIALLY FLAT, REMOVING PARTICLES FROM THE SURFACE OF THE MAT UNTIL THE MAT HAS A PREDETERMINED THICKNESS WHILE HOLDING THE PLATE SUBSTANTIALLY FLAT, RELEASING THE PLATE WHEREUPON BECAUSE OF ITS RESILIENCY IT REASSUMES ITS ARCUATE CONFIGURATION, AND PRESSING THE MAT TO A PREDETERMINED DENSITY.
References Cited (Backward Citations)
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Cited
US1399485A
Cited
US1541206A
Cited
US1767539A
Cited
GB445056A
Cited
US2601349A
Cited
US2668322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |