US3057932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of para-(beta-substituted vinyl)styrene and intermediate products
Assignee: Union Carbide Corp
•
Filing: 1958-12-24
•
Granted: 1962-10-09
•
Expires: 1978-12-24
Abstract
No abstract record available.
Inventors
- 👤 Robert D Hiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:08
CPC Classifications
C; C07; C07C; C07C22/00; C07C22/02; C07C22/04; C07C15/00; C07C15/40; C07C15/42; C07C15/44; C07C17/00; C07C17/38; C07C17/42
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
3 words
A PARA-VINYL-BETA-PHENYLETHYL HALIDE.
Claim 2
Dependent Claim
3 words
A PARA-VINYL-BETA-PHENYLETHYL HALIDE.
Claim 3
Dependent Claim
15 words
A PROCESS FOR THE PRODUCTION OF A PARA-(BETA-SUBSTITUTED VINYL) STYRENE OF THE FOLLOWING GENERAL FORMULA:
Claim 4
Dependent Claim
15 words
A PROCESS FOR THE PRODUCTION OF A PARA-(BETA-SUBSTITUTED VINYL) STYRENE OF THE FOLLOWING GENERAL FORMULA:
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) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |