US2601200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of molding granules
Assignee: Dow Chemical Co
•
Filing: 1948-11-09
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Granted: 1952-06-17
•
Expires: 1968-11-09
Abstract
No abstract record available.
Inventors
- 👤 James L Amos
- 👤 Alden W Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:46
CPC Classifications
B; B29; B29B; B29B9/00; B29B9/02; B29B9/04; B26; B26D; B26D1/00; B26D1/01; B26D1/12; B26D1/25; B26D1/34; B26D1/38; Y; Y10; Y10S; Y10S425/00; Y10S425/101; Y10S83/00; Y10S83/906; Y10T; Y10T225/00; Y10T225/10; Y10T225/16; Y10T225/18; Y10T225/30; Y10T225/307; Y10T83/00; Y10T83/04; Y10T83/0524; Y10T83/0538; Y10T83/0605; Y10T83/465; Y10T83/4699; Y10T83/4766; Y10T83/4795; Y10T83/4824; Y10T83/4827
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
205 words
A METHOD FOR PRODUCING MOLDING GRANULES, WHICH COMPRISES TRANSVERSELY CUTTING A SHEET OF A THERMOPLASTIC RESIN, HAVING AN IMPACT STRENGTH OF FROM 0.1 TO 1.5 FOOT-POUNDS PER INCH OF NOTCH, WHICH SHEET IS CORRUGATED BY HAVING A SERIES OF PARALLEL GROOVES AND RIDGES ON AT LEAST ONE FACE THEREOF, AND HAS EACH RIDGE ON ONE FACE OPPOSITE A RIDGE ON THE OTHER FACE IN THE INSTANCE IN WHICH BOTH FACES ARE CORRUGATED, AND WHICH SHEET HAS A MAXIMUM THICKNESS AT THE RIDGES OF FROM 1/16 TO 1/4 INCH AND A WEB THICKNESS BETWEEN THE RIDGES OF FROM 0.015 TO 0.065 INCH, BY DOWNWARD PRESSING OF THE SHEET AGAINST A SUPPORT WITH ONE CORRUGATED END OF THE SHEET PROJECTING FROM 1/16 TO 1/2 INCH BEYOND A SUBSTANTIALLU STRAIGHT EDGE OF THE SUPPORT, THE DOWNWARD PRESSING BEING ALONG A LINE PARALLEL TO AND BETWEEN 1/8 AND 1/2 INCH FROM SAID STRAIGHT EDGE OF THE SUPPORT, AND CUTTING THE PROJECTING END OF THE SHEET BY DOWNWARD MOVEMENT OF A KNIFE ADJACENT TO AND ALONG THE STRAIGHT EDGE OF THE SUPPORT WHILE POSITIONING THE KNIFE EDGE AT AN ANGLE OF FROM 20 TO 45 DEGREES WITH RESPECT TO THE PLANE OF THE SUPPORTED SHEET AT EACH POINT OF CUTTING.
Claim 2
Independent Claim
205 words
A METHOD FOR PRODUCING MOLDING GRANULES, WHICH COMPRISES TRANSVERSELY CUTTING A SHEET OF A THERMOPLASTIC RESIN, HAVING AN IMPACT STRENGTH OF FROM 0.1 TO 1.5 FOOT-POUNDS PER INCH OF NOTCH, WHICH SHEET IS CORRUGATED BY HAVING A SERIES OF PARALLEL GROOVES AND RIDGES ON AT LEAST ONE FACE THEREOF, AND HAS EACH RIDGE ON ONE FACE OPPOSITE A RIDGE ON THE OTHER FACE IN THE INSTANCE IN WHICH BOTH FACES ARE CORRUGATED, AND WHICH SHEET HAS A MAXIMUM THICKNESS AT THE RIDGES OF FROM 1/16 TO 1/4 INCH AND A WEB THICKNESS BETWEEN THE RIDGES OF FROM 0.015 TO 0.065 INCH, BY DOWNWARD PRESSING OF THE SHEET AGAINST A SUPPORT WITH ONE CORRUGATED END OF THE SHEET PROJECTING FROM 1/16 TO 1/2 INCH BEYOND A SUBSTANTIALLU STRAIGHT EDGE OF THE SUPPORT, THE DOWNWARD PRESSING BEING ALONG A LINE PARALLEL TO AND BETWEEN 1/8 AND 1/2 INCH FROM SAID STRAIGHT EDGE OF THE SUPPORT, AND CUTTING THE PROJECTING END OF THE SHEET BY DOWNWARD MOVEMENT OF A KNIFE ADJACENT TO AND ALONG THE STRAIGHT EDGE OF THE SUPPORT WHILE POSITIONING THE KNIFE EDGE AT AN ANGLE OF FROM 20 TO 45 DEGREES WITH RESPECT TO THE PLANE OF THE SUPPORTED SHEET AT EACH POINT OF CUTTING.
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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) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |