US3030335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aromatic polycarbonate reaction products
Assignee: General Electric Co
•
Filing: 1959-01-02
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Granted: 1962-04-17
•
Expires: 1979-01-02
Abstract
No abstract record available.
Inventors
- 👤 Eugene P Goldberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:18
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/44; C08G64/00; C08G64/18; C08G64/183; Y; Y10; Y10S; Y10S264/00; Y10S264/77; Y10S528/00; Y10S528/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
THE REACTION PRODUCT OF A HIGH MOLECULAR WEIGHT RESINOUS POLYCARBONATE OF A MIXTURE OF A DIHYDRIC PHENOL AND A POLYALKYLENE GLYCOL, AND A DISOCYANATE.
Claim 2
Dependent Claim
24 words
THE REACTION PRODUCT OF A HIGH MOLECULAR WEIGHT RESINOUS POLYCARBONATE OF A MIXTURE OF A DIHYDRIC PHENOL AND A POLYALKYLENE GLYCOL, AND A DISOCYANATE.
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) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |