Patent US2971983A successfully refreshed from Google Patents.
US2971983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of organo 2-halo-1-propenyl ketones
Assignee: Union Carbide Corp
•
Filing: 1958-05-12
•
Granted: 1961-02-14
•
Expires: 1978-05-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Henry
- 👤 Robert M Manyik
- 👤 Wellington E Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:22
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/76; C07C49/80; C07C45/00; C07C49/20; C07C49/227
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A PROCESS FOR THE PRODUCTION OF ORGANO 2-HALO-1PROPENYL KETONES WHICH COMPRISES REACTING PROPADIENE WITH A CARBOXYLIC ACID HALIDE HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
22 words
A PROCESS FOR THE PRODUCTION OF ORGANO 2-HALO-1PROPENYL KETONES WHICH COMPRISES REACTING PROPADIENE WITH A CARBOXYLIC ACID HALIDE HAVING THE 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) | 1964-02-14 | 1964-08-15 | 1965-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-14 | 1968-08-15 | 1969-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-14 | 1972-08-15 | 1973-02-14 | $7700.00 | Window Closed / Lapsed |