US3634570A
Expired / Lapsed
US
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Elastomer granulation process
Assignee: EIDP Inc
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Filing: 1969-10-20
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Granted: 1972-01-11
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Expires: 1989-10-20
Abstract
Abstract AN IMPROVED PROCESS FOR THE MANUFACTURE OF GRANULAR NEOPRENE COMPRISING THE STEPS OF SIMULTANEOUSLY LUBRICATING AND SLICING A UNITARY STRAND OF NEOPRENE LONGITUDINALLY INTO A PLURALITY OF CONTINUOUS FILAMENTS, MAINTAINING THE FILAMENTS IN SPACED RELATION TO EACH OTHER, CONTINUOUSLY CROSS-CUTTING THE FILAMENTS TO FORM GRANULAR PARTICLES, DUSTING THE GRANULAR PARTICLES WITH TALC OR A TALC CONTAINING MIXTURE, AND COLLECTING THE GRANULAR PARTICLES.
Inventors
- 👤 Louis Eugene Himelreich Jr
- 👤 Nelson Arnold Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:38
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; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2998
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |