US3269971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polycarbonate flow extenders
Assignee: General Electric Co
•
Filing: 1965-04-08
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Granted: 1966-08-30
•
Expires: 1985-04-08
Abstract
No abstract record available.
Inventors
- 👤 Kenneth B Goldblum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:47
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/109
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A PLASTICIZED POLYCARBONATE RESIN COMPOSITION CONSISTING OF A POLYCARBONATE RESIN SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF DIHYDRIC PHENOLS AND COPOLYMERS THEREOF AND A CARBONATE ESTER PLASTICIZER HAVING THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
33 words
A PLASTICIZED POLYCARBONATE RESIN COMPOSITION CONSISTING OF A POLYCARBONATE RESIN SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF DIHYDRIC PHENOLS AND COPOLYMERS THEREOF AND A CARBONATE ESTER PLASTICIZER HAVING THE FOLLOWING GENERAL FORMULA:
References Cited (Backward Citations)
FR1011173A
Cited
US3071556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |