US3522198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified polypropylene composition
Assignee: Mitsubishi Chemical Corp
•
Filing: 1968-10-25
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Granted: 1970-07-28
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Expires: 1988-10-25
Abstract
No abstract record available.
Inventors
- 👤 Nobuo Yamada
- 👤 Akira Ichikawa
- 👤 Munehiro Okumura
- 👤 Haruo Miyamoto
- 👤 Toshiyuki Nanbu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:35
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0091; C08L; C08L23/00; C08L23/02; C08L23/10; C08L2203/00; C08L2203/12; C08L2205/00; C08L2205/02; C08L2205/03; C08L2205/035; C08L23/04; C08L23/06; C08L23/08; C08L23/0846; C08L23/0853; C08L23/0861; C08L39/00; C08L39/04; C08L39/08; C08L91/00; C08L91/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |