Patent US3539841A successfully refreshed from Google Patents.
Patent US3755526A successfully refreshed from Google Patents.
US3755526A
Expired / Lapsed
US
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Method of forming thermoplastics
Assignee: ExxonMobil Oil Corp
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Filing: 1971-06-11
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Granted: 1973-08-28
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Expires: 1991-06-11
Abstract
Abstract APPARATUS AND PROCESS ARE DESCRIBED FOR FORMING THERMOPLASTIC MATERIALS INTO RODS FOR SHIPMENT AND USE IN HOT MELT COATING EQUIPMENT. THE SYSTEM OF EXTRUSION THROUGH ELECTRICALLY HEATED NOZZLES TO A WATER BATH IS PARTICULARLY APPLICABLE TO HOT MELTS WHICH ARE BLENDS OF PETROLEUM WAXES AND POLYMERIC MATERIALS, WHICH BLENDS HAVE RELATIVELY HIGH MELTING POINT AND TENSILE STRENGTH.
Inventors
- 👤 K Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:57
CPC Classifications
B; B29; B29B; B29B13/00; B29B13/02; B29B13/022; B29C; B29C48/00; B29C48/03; B29C48/04; B29C48/25; B29C48/78; B29C48/86; B29C48/865; B29C48/88; B29C48/91; B29C48/919; B29K; B29K2091/00
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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |