US2768983A
Expired / Lapsed
US
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Hf-bf catalytic processing
Assignee: Standard Oil Co
•
Filing: 1955-01-31
•
Granted: 1956-10-30
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Expires: 1975-01-31
Abstract
No abstract record available.
Inventors
- 👤 Alistair S Couper
- 👤 Dravnieks Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:57
CPC Classifications
C; C22; C22C; C22C21/00; B; B01; B01J; B01J19/00; B01J19/02; B01J27/00; B01J27/06; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2729; C07C5/2732; C07C5/274; C07C5/2748; C07C6/00; C07C6/08; C07C6/12; C07C6/126; B01J2219/00; B01J2219/02; B01J2219/0204; B01J2219/0236; B01J2219/025; B01J2219/0277; B01J2219/0286; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
IN THE PROCESS OF REACTING HYDROCARBONS IN THE PRESENCE OF A CATALYTIC AGENT CONSISTING OF SUBSTANTIALLY ANHYDROUS HF AND BF3, THE IMPROVEMENT WHEREIN THE
Claim 2
Dependent Claim
24 words
IN THE PROCESS OF REACTING HYDROCARBONS IN THE PRESENCE OF A CATALYTIC AGENT CONSISTING OF SUBSTANTIALLY ANHYDROUS HF AND BF3, THE IMPROVEMENT WHEREIN THE
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |