Patent US3477978A successfully refreshed from Google Patents.
US3477978A
Expired / Lapsed
US
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Heat moldable polycarbonate composition
Assignee: General Electric Co
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Filing: 1967-01-04
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Granted: 1969-11-11
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Expires: 1987-01-04
Abstract
No abstract record available.
Inventors
- 👤 Fred F Holub
- 👤 John J Keane
- 👤 James K S Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:58
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08L; C08L69/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3196123A
Cited
US3271358A
Cited
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 |