Patent US3705129A successfully refreshed from Google Patents.
US3705129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resin composition containing metallocenes
Assignee: Hitachi Ltd
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Filing: 1970-05-26
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Granted: 1972-12-05
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Expires: 1990-05-26
Abstract
Abstract AN EPOXY RESIN COMPOSITION HAVING AN EXCELLENT LATENT CURING CHARACTERISTIC AT ROOM TEMPERATURE AND A GOOD CURING PROPERTY COMPRISING AN EPOXY RESIN AND A METALLOCENE OR A DERIVATIVE THEREOF. PREFERRED METALLOCENES INCLUDE FERROCENE AND DERIVATIVES THEREOF. ADDITIONAL CURING ADDITIVES, SUCH AS QUINONE, ORGANIC PEROXIDES AND PHEONOL, CAN BE EMPLOYED AS DESIRED. THE RESULTANT CURED EPOXY RESINS DISPLAY EXCELLENT MECHANICAL AND ELECTRICAL PROPERTIES.
Inventors
- 👤 Tadashi Murio
- 👤 Mikio Sato
- 👤 Masatzugu Ogata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:20
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |