Patent US3229002A successfully refreshed from Google Patents.
US3229002A
Expired / Lapsed
US
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Method of treating thermoplastic resin in finely divided form to improve flowability
Assignee: Wedco Inc
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Filing: 1964-06-09
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Granted: 1966-01-11
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Expires: 1984-06-09
Abstract
No abstract record available.
Inventors
- 👤 Friedhelm R Feder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:14
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/12; C08J3/124; B; B01; B01F; B01F27/00; B01F27/60; B01F27/70; B01F27/708; B29; B29B; B29B7/00; B29B7/002; B29B7/02; B29B7/06; B29B7/10; B29B7/12; B29B7/16; B29B7/22; B29B7/28; B29B7/286; B29B9/00; B29B9/16; B01F27/05; B01F27/11; B01F27/112; B01F27/1121; B29B2009/166
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
THE METHOD OF TREATING THERMOPLASTIC RESIN IN FINELY DIVIDED FORM TO IMPROVE FLOWABILITY THEREOF, THE RESIN PARTICLES HAVING RELATIVELY POOR FLOW PROPERTIES, WHICH COMPRISES AGITATING A MASS OF THE PARTICLES TO GENERATE HEAT THEREIN FROM FRICTION BETWEEN THE PARTICLES TO HEAT THE PARTICLES SUBSTANTIALLY WITHOUT OCCURRENCE OF AGGLOMERATION THEREOF, CONTINUING SAID AGITATING FOR A TIME SUFFICIENT FOR MODIFICATION OF THE PARTICLES PROVIDING THEM WITH SUBSTANTAILLY IMPROVED FLOWABILITY.
Claim 2
Independent Claim
67 words
THE METHOD OF TREATING THERMOPLASTIC RESIN IN FINELY DIVIDED FORM TO IMPROVE FLOWABILITY THEREOF, THE RESIN PARTICLES HAVING RELATIVELY POOR FLOW PROPERTIES, WHICH COMPRISES AGITATING A MASS OF THE PARTICLES TO GENERATE HEAT THEREIN FROM FRICTION BETWEEN THE PARTICLES TO HEAT THE PARTICLES SUBSTANTIALLY WITHOUT OCCURRENCE OF AGGLOMERATION THEREOF, CONTINUING SAID AGITATING FOR A TIME SUFFICIENT FOR MODIFICATION OF THE PARTICLES PROVIDING THEM WITH SUBSTANTAILLY IMPROVED FLOWABILITY.
References Cited (Backward Citations)
US2858299A
Cited
US3078518A
Cited
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 |