US4247475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chloroformates of cyanoacrylates
Assignee: General Electric Co
•
Filing: 1980-03-17
•
Granted: 1981-01-27
•
Expires: 2000-03-17
Abstract
Abstract Certain cyanochloroformates are described which have utility for imparting UV stability to polycarbonate resins.
Inventors
- 👤 Ta-Yen Ching
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:45
CPC Classifications
C; C07; C07C; C07C255/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
22 words
A composition of matter having the general formula ##STR11## where X is a divalent saturated alkylene group of the C 2-10 series.
Claim 2
Dependent Claim
22 words
A composition of matter having the general formula ##STR11## where X is a divalent saturated alkylene group of the C 2-10 series.
Claim 3
Dependent Claim
8 words
A composition of matter having the formula ##STR12##
Claim 4
Dependent Claim
8 words
A composition of matter having the formula ##STR12##
Claim 5
Dependent Claim
8 words
A composition of matter having the formula ##STR13##
Claim 6
Dependent Claim
8 words
A composition of matter having the formula ##STR13##
Claim 7
Dependent Claim
8 words
A composition of matter having the formula ##STR14##
Claim 8
Dependent Claim
8 words
A composition of matter having the formula ##STR14##
Claim 9
Dependent Claim
8 words
A composition of matter having the formula ##STR15##
Claim 10
Dependent Claim
8 words
A composition of matter having the formula ##STR15##
Claim 11
Dependent Claim
8 words
A composition of matter having the formula ##STR16##
Claim 12
Dependent Claim
8 words
A composition of matter having the formula ##STR16##
References Cited (Backward Citations)
US3644466A
Cited
US4203919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-27 | 1984-07-28 | 1985-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-27 | 1988-07-28 | 1989-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-27 | 1992-07-28 | 1993-01-27 | $7700.00 | Window Closed / Lapsed |