US3890266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polycarbonate mixtures
Assignee: Bayer AG
•
Filing: 1973-09-26
•
Granted: 1975-06-17
•
Expires: 1993-09-26
Abstract
Abstract Mixtures of 10 to 95 parts by weight of polycarbonate of recurring units WHERE:
Inventors
- 👤 Volker Serini
- 👤 Hugo Vernaleken
- 👤 Wolfgang Cohnen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:25
CPC Classifications
C; C08; C08L; C08L69/00; Y; Y10; Y10S; Y10S260/00; Y10S260/24
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
18 words
POLYCARBONATE MIXTURES COMPRISING, BASED ON THE POLYCARBONATE, 10 TO 95 PARTS BY WEIGHT OF POLYCARBONATE OF RECURRING UNITS:
Claim 2
Dependent Claim
18 words
POLYCARBONATE MIXTURES COMPRISING, BASED ON THE POLYCARBONATE, 10 TO 95 PARTS BY WEIGHT OF POLYCARBONATE OF RECURRING UNITS:
Claim 3
Dependent Claim
7 words
The polycarbonate mixtures of claim 1 wherein
Claim 4
Dependent Claim
7 words
The polycarbonate mixtures of claim 1 wherein
Claim 5
Dependent Claim
7 words
Polycarbonate mixtures according to claim 1 wherein
Claim 6
Dependent Claim
18 words
Polycarbonate mixtures comprising, based on the polycarbonate, 30 to 90 parts by weight of polycarbonate of recurring units:
Claim 7
Dependent Claim
18 words
Polycarbonate mixtures comprising, based on the polycarbonate, 30 to 90 parts by weight of polycarbonate of recurring units:
Claim 8
Dependent Claim
26 words
The polycarbonate mixtures of claim 1 containing additionally up to 40 parts by weight of glass fibers, referred to the weight of the mixture of polycarbonates.
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) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |