US3273314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of alkynes from gaseous streams with a silver carboxylate ion exchange resin
Assignee: Dow Chemical Co
•
Filing: 1964-06-29
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Granted: 1966-09-20
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Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 Harold W Quinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:31
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/12; B; B01; B01D; B01D53/00; B01D53/02; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/186; C07C7/13; Y; Y10; Y10S; Y10S95/00; Y10S95/90; Y10S95/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
A PROCESS FOR REMOVING AN ALKYNE OF THE FORMULA:
Claim 2
Dependent Claim
9 words
A PROCESS FOR REMOVING AN ALKYNE OF THE 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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |