US2743264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic polymerization of acetylene
Assignee: Airco Inc
•
Filing: 1953-01-21
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Granted: 1956-04-24
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Expires: 1973-01-21
Abstract
No abstract record available.
Inventors
- 👤 Alio J Buselli
- 👤 Francis E Mckenna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:11
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/42; C07C2/48; C07C2523/00; C07C2523/70; C07C2523/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
THE METHOD OF PRODUCING CUPRENE IN THE POLYNERIZATION OF ACETYLENE WHICH COMPRISES PASSING ACETYLENE NTO CONTACT WITH A CUPROUS OXIDE FILM ON A METALLIC COPPER SUBSTRATE AT AN ELEVATED TEMPERATURE ABOVE 200* C., THEREBY PRODUCING CUPRENE RELATIVELY LOW IN CONTAINED CATALYST.
Claim 2
Independent Claim
41 words
THE METHOD OF PRODUCING CUPRENE IN THE POLYNERIZATION OF ACETYLENE WHICH COMPRISES PASSING ACETYLENE NTO CONTACT WITH A CUPROUS OXIDE FILM ON A METALLIC COPPER SUBSTRATE AT AN ELEVATED TEMPERATURE ABOVE 200* C., THEREBY PRODUCING CUPRENE RELATIVELY LOW IN CONTAINED CATALYST.
References Cited (Backward Citations)
GB438548A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |