Patent US2838561A successfully refreshed from Google Patents.
US2838561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of polyolefinic acyloxy compounds
Assignee: Celanese Corp
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Filing: 1955-06-10
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Granted: 1958-06-10
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Expires: 1975-06-10
Abstract
No abstract record available.
Inventors
- 👤 Gene J Fisher
- 👤 Alexander F Maclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:54
CPC Classifications
C; C07; C07C; C07C51/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
PROCESS FOR THE PRODUCTION OF POLYOLEFINIC ACYLOXY COMPOUNDS WHICH COMPRISES REACTING A POLY (LOWER ALKOXY) ALKALANE WHEREIN TWO LOWER ALKOXY RADICALS ARE ON THE 1-CARBON ATOM AND A FURTHER LOWER ALKOXY RADICAL IS ON THE 3-CARBON ATOM, THE ALKALANE PORTION HAVING UP TO 8 CARBON ATOMS, WITH A KETENE AND DEALCOHOLATING THE PRODUCT OF THE REACTION TO PRODUCE A POLYOLEFINIC ACYLOXY COMPOUND.
Claim 2
Dependent Claim
62 words
PROCESS FOR THE PRODUCTION OF POLYOLEFINIC ACYLOXY COMPOUNDS WHICH COMPRISES REACTING A POLY (LOWER ALKOXY) ALKALANE WHEREIN TWO LOWER ALKOXY RADICALS ARE ON THE 1-CARBON ATOM AND A FURTHER LOWER ALKOXY RADICAL IS ON THE 3-CARBON ATOM, THE ALKALANE PORTION HAVING UP TO 8 CARBON ATOMS, WITH A KETENE AND DEALCOHOLATING THE PRODUCT OF THE REACTION TO PRODUCE A POLYOLEFINIC ACYLOXY COMPOUND.
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) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |