US3515616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for bonding polypropylene materials with rubbers
Assignee: Mitsubishi Chemical Corp
•
Filing: 1966-12-06
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Granted: 1970-06-02
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Expires: 1986-12-06
Abstract
No abstract record available.
Inventors
- 👤 Haruo Mivamoto
- 👤 Hideo Uchida
- 👤 Katsuhiko Uzawa
- 👤 Tsutomu Ohbayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:55
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08J3/00; C08J2321/00; C08J2323/00; C08J2323/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31826; Y10T428/31833; Y10T428/31855; Y10T428/31859; Y10T428/31877
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2981650A
Cited
US3075857A
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US3333025A
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US3260641A
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US3157564A
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US3179554A
Cited
US3303082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |