US3229009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming composition board
Assignee: BOARD MACHINERY Co Inc T
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Filing: 1962-09-14
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Granted: 1966-01-11
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Expires: 1982-09-14
Abstract
No abstract record available.
Inventors
- 👤 William L Knowles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:56
CPC Classifications
B; B27; B27N; B27N5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A METHOD OF CONTINUOUSLY EXTRUDING A COMPOSITION BOARD CHARACTERIZED BY A SEVER CROSS-SECTIONAL SHAPE INCLUDING A PLURALITY OF INTEGRAL ANGULARLY DISPOSED PLANES, FROM A HETEROGENEOUS MIXTURE OF DRY LIGNO-CELLULOSE FINE PARTICLES INTERMIXED WITH RESIN, WHICH COMPRISES THE STEPS OF LOOSELY FEEDING SAID DRY MIXTRUE INTO A FIRST MOLD CAVITY CHARACTERIZED BY A PLURALITY OF ANGULARLY DISPOSED FORMS WHILE CONTINUOUSLY AGITATING SAID DRY MIXTURE AT A POINT IMMEDIATELY ADJACENT SAID CAVITY EVENLY TO DISTRIBUTE THE MIXTURE INTO ALL OF SAID ANGULARLY DISPOSED FORMS WHILE LIMITING THE QUANTITY DISTRUBUTED INTO ANY ONE FORM, FEEDING PORTIONS OF SAID EVENLY DISTRIBUTED MIXTURE
Claim 2
Independent Claim
98 words
A METHOD OF CONTINUOUSLY EXTRUDING A COMPOSITION BOARD CHARACTERIZED BY A SEVER CROSS-SECTIONAL SHAPE INCLUDING A PLURALITY OF INTEGRAL ANGULARLY DISPOSED PLANES, FROM A HETEROGENEOUS MIXTURE OF DRY LIGNO-CELLULOSE FINE PARTICLES INTERMIXED WITH RESIN, WHICH COMPRISES THE STEPS OF LOOSELY FEEDING SAID DRY MIXTRUE INTO A FIRST MOLD CAVITY CHARACTERIZED BY A PLURALITY OF ANGULARLY DISPOSED FORMS WHILE CONTINUOUSLY AGITATING SAID DRY MIXTURE AT A POINT IMMEDIATELY ADJACENT SAID CAVITY EVENLY TO DISTRIBUTE THE MIXTURE INTO ALL OF SAID ANGULARLY DISPOSED FORMS WHILE LIMITING THE QUANTITY DISTRUBUTED INTO ANY ONE FORM, FEEDING PORTIONS OF SAID EVENLY DISTRIBUTED MIXTURE
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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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |