US3290261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foamed resin comprising aromatic polycarbonate and oxymethylene polymer
Assignee: General Electric Co
•
Filing: 1963-08-22
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Granted: 1966-12-06
•
Expires: 1983-08-22
Abstract
No abstract record available.
Inventors
- 👤 Kenneth B Goldblum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:15
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; C08L; C08L69/00; C08J2369/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
50 words
A FOAMED RESIN WHICH COMPRISES THE PRODUCT OF HEATING TO ABOVE ABOUT 350*F. A MIXTURE COMPRISING (1) AN AROMATIC POLYCARBONATE RESIN OF A DIHYDRIC PHENOL AND A CARBONATE PRECURSOR AND (2) ABOUT 0.1 TO ABOUT 20.0 WEIGHT PERCENT OF AN OXYMETHYLENE POLYMER BASED ON THE WEIGHT OF THE RESIN MIXTURE.
References Cited (Backward Citations)
US2787632A
Cited
US3132118A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |