Patent US3478089A successfully refreshed from Google Patents.
US3478089A
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US
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Liquid carboxylic acid salts of diamines as curing agents
Assignee: Takeda Pharmaceutical Co Ltd
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Filing: 1967-05-01
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Granted: 1969-11-11
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Expires: 1987-05-01
Abstract
No abstract record available.
Inventors
- 👤 Junji Ogura
- 👤 Noritoshi Mise
- 👤 Makoto Yokoo
- 👤 Yoshihiro Hatanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:49
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/32; C08G18/3225; C08G18/3253; C08G18/3259; C08G18/3262; C08G18/08; C08G18/10
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) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |