Patent US3536679A successfully refreshed from Google Patents.
US3536679A
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Lithiated-amine polymerization catalyst
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1969-05-16
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Granted: 1970-10-27
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Expires: 1989-05-16
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Langer Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:47
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2642; C08G65/269; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/0825; C07F7/0827; C08C; C08C19/00; C08C19/26; C08F; C08F36/00; C08F36/02; C08F36/04; C08F4/00; C08F4/06; C08F4/12; C08G65/04; C08G65/06; C08G65/08; C08G65/10; C08G65/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3036056A
Cited
US3451988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |