Patent US3773885A successfully refreshed from Google Patents.
US3773885A
Expired / Lapsed
US
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Process for curing elastomer extrudates
Assignee: Individual
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Filing: 1971-08-04
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Granted: 1973-11-20
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Expires: 1991-08-04
Abstract
Abstract PROCESS FOR CURING ELASTOMER EXTRUDATES, WHEREIN AN ELASTOMER EXTRUDATE OF A PREDETERMINED LENGTH IS IMMEDIATELY COOLED AFTER EXTRUDING SAME IN A LIQUID BATH HAVING A SPECIFIC GRAVITY RELATED TO THE SPECIFIC GRAVITY OF THE EXTRUDATE SO THAT THERE IS A SUBSTANTIALLY ZERO GRAVITY EFFECT ON THE EXTRUDATE AND TO TERMINATE THE HEAT HISTORY OF THE EXTRUDATE PRIOR TO THE APPLICATION OF PRESSURE AND HEAT THERETO FOR CURING SAME.
Inventors
- 👤 R Boone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:02
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/88; B29C48/919; B29C48/03; B29C48/09; B29C48/11; B29C48/12; B29C48/91; B29K; B29K2021/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |