US3513150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing polyethylene
Assignee: Mitsubishi Chemical Corp
•
Filing: 1965-11-23
•
Granted: 1970-05-19
•
Expires: 1985-11-23
Abstract
No abstract record available.
Inventors
- 👤 Ryo Matsuura
- 👤 Shigeo Kamimura
- 👤 Koichiro Iwasaki
- 👤 Kazuo Yamaguchi
- 👤 Jihei Inomata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:22
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3255167A
Cited
US3007905A
Cited
US3105066A
Cited
US3166542A
Cited
US3324101A
Cited
US3371079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |