Patent US3234181A successfully refreshed from Google Patents.
US3234181A
Expired / Lapsed
US
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Melt-fabricable end-capped aromatic polymides
Assignee: EIDP Inc
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Filing: 1961-03-15
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Granted: 1966-02-08
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Expires: 1981-03-15
Abstract
No abstract record available.
Inventors
- 👤 Olivier Kenneth Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:32
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/1003; C08G73/1007; C08G73/101; C08G73/1014; C08G73/1057; C08G73/1064; C08G73/1067; C08G73/1071
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A MELT-FABRICABLE, END-CAPPED AROMATIC POLYIMIDE HAVING THE STRUCTURE
Claim 2
Dependent Claim
8 words
A MELT-FABRICABLE, END-CAPPED AROMATIC POLYIMIDE HAVING THE STRUCTURE
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |