Patent US3007981A successfully refreshed from Google Patents.
US3007981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the separation of hydrocarbons
Assignee: EIDP Inc
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Filing: 1960-04-26
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Granted: 1961-11-07
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Expires: 1980-04-26
Abstract
No abstract record available.
Inventors
- 👤 Baker Bertsil Burgess
- 👤 Knaack Donald Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:11
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/148; C07C7/152; C07C7/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PROCESS FOR SEPARATING FLUID HYDROCARBON MIXTURES SELECTED FROM THE GROUP CONSISTING OF MIXTURES OF SATURATED HYDROCARBONS AND OLEFINIC HYDROCARBONS, MONOOLEFINS AND DIOLEFINS, AND MIXTURES OF OLEFINS DIFFERING IN STERIC HINDRANCE WHICH COMPRISES BRINGING SAID MIXTURE INTO CONTACT WITH AN AQUEOUS SOLUTION OF A SILVER SALT SELECTED FROM THE GROUP CONSISTING OF SILVER FLUOBORATE, SILVER FLUOSILICATE AND COMBINATIONS THEREOF, AND A METAL SALT WHEREIN THE CATION IS A METAL OF GROUP II OF THE PERIODIC TABLE OF ELEMENTS AND HAS AN ATOMIC NUMBER FROM 4 TO 56 INCLUSIVE, AND THE ANION IS SELECTED FROM THE GROUP CONSISTING OF FLUOBORATES, FLUOSILICATES AND COMBINATIONS THEREOF.
Claim 2
Dependent Claim
103 words
A PROCESS FOR SEPARATING FLUID HYDROCARBON MIXTURES SELECTED FROM THE GROUP CONSISTING OF MIXTURES OF SATURATED HYDROCARBONS AND OLEFINIC HYDROCARBONS, MONOOLEFINS AND DIOLEFINS, AND MIXTURES OF OLEFINS DIFFERING IN STERIC HINDRANCE WHICH COMPRISES BRINGING SAID MIXTURE INTO CONTACT WITH AN AQUEOUS SOLUTION OF A SILVER SALT SELECTED FROM THE GROUP CONSISTING OF SILVER FLUOBORATE, SILVER FLUOSILICATE AND COMBINATIONS THEREOF, AND A METAL SALT WHEREIN THE CATION IS A METAL OF GROUP II OF THE PERIODIC TABLE OF ELEMENTS AND HAS AN ATOMIC NUMBER FROM 4 TO 56 INCLUSIVE, AND THE ANION IS SELECTED FROM THE GROUP CONSISTING OF FLUOBORATES, FLUOSILICATES AND COMBINATIONS THEREOF.
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) | 1964-11-06 | 1965-05-08 | 1965-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-06 | 1969-05-08 | 1969-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-06 | 1973-05-08 | 1973-11-07 | $7700.00 | Window Closed / Lapsed |