US3078636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unsaturated hydrocarbon separation
Assignee: Union Carbide Corp
•
Filing: 1959-12-18
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Granted: 1963-02-26
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Expires: 1979-12-18
Abstract
No abstract record available.
Inventors
- 👤 Robert M Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:43
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/12; C07C7/13; B; B01; B01D; B01D53/00; B01D53/02; B01D2253/00; B01D2253/10; B01D2253/106; B01D2253/108; B01D2253/30; B01D2253/302; B01D2253/308; B01D2256/00; B01D2256/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A PROCESS FOR ESPARATING NORMAL UNSATURATED ALIPHATIC HYDROCARBONS CONTAINING LESS THAN FOUR CARBON ATOMS PER MOLECULE FROM A VAPOR MIXTURE CONTAINING
Claim 2
Dependent Claim
21 words
A PROCESS FOR ESPARATING NORMAL UNSATURATED ALIPHATIC HYDROCARBONS CONTAINING LESS THAN FOUR CARBON ATOMS PER MOLECULE FROM A VAPOR MIXTURE CONTAINING
References Cited (Backward Citations)
US1813174A
Cited
US2944092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |