US3206377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extractive separation process
Assignee: Monsanto Co
•
Filing: 1961-07-10
•
Granted: 1965-09-14
•
Expires: 1981-07-10
Abstract
No abstract record available.
Inventors
- 👤 Cornell David
- 👤 Gail H Birum
- 👤 James R Fair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:24
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/04; C07C7/05; C07C7/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
THE METHOD OF SEPARATING COMPONENTS FROM A MIXTURE CONTAINING A PLURALITY OF COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF PARAFFINS, MONOOLEFINS, DIOLEFINS, NAPHTHENES AND AROMATIC HYDROCARBONS, WHICH COMPRISES CONTACTING THE SAID MIXTURE WITH A PHOSPHORUS COMPOUND HAVING THE FOLLOWLING STRUCTURAL FORMULA:
Claim 2
Independent Claim
41 words
THE METHOD OF SEPARATING COMPONENTS FROM A MIXTURE CONTAINING A PLURALITY OF COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF PARAFFINS, MONOOLEFINS, DIOLEFINS, NAPHTHENES AND AROMATIC HYDROCARBONS, WHICH COMPRISES CONTACTING THE SAID MIXTURE WITH A PHOSPHORUS COMPOUND HAVING THE FOLLOWLING STRUCTURAL FORMULA:
References Cited (Backward Citations)
US2567228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |