US3669797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing composite bodies of metals and polyolefins
Assignee: Mitsubishi Chemical Corp
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Filing: 1969-07-01
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Granted: 1972-06-13
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Expires: 1989-07-01
Abstract
Abstract IN THE MANUFACTURE OF COMPOSITE BODIES OF METALS AND POLYOLEFINS, A BINDER IS USED ESSENTIALLY CONSISTING OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF MALEIC ACIDVINYL ACETATE COPOLYMER, ACRYLIC ACID-VINYL ACETATE COPOLYMER, ESTERIFIED MALEIC ACID-VINYL ACETATE COPOLYMERS AND ESTERIFIED MALEIC ACID-STYRENE COPOLYMERS AND THE COMPOSITE BODIES ARE PRESSED AT A TEMPERATURE HIGHER THAN THE MELTING POING OF POLYOLEFINS.
Inventors
- 👤 Yoshiaki Fukazawa
- 👤 Yoshitaka Iwata
- 👤 Shigeharu Sakurai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:17
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08
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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |