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US3513221A
Expired / Lapsed
US
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Curable compositions containing epoxy resins and amine modified hydrocarbon-aldehyde resins
Assignee: Mitsubishi Gas Chemical Co Inc
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Filing: 1967-07-10
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Granted: 1970-05-19
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Expires: 1987-07-10
Abstract
No abstract record available.
Inventors
- 👤 Ching Yun Huang
- 👤 Kazuo Ueno
- 👤 Hisanori Tanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 01:25
CPC Classifications
C; C08; C08L; C08L63/00; C08G; C08G14/00; C08G14/02; C08L61/00; C08L61/34
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) | 1973-05-18 | 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 |