Patent US2407873A successfully refreshed from Google Patents.
US2407873A
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US
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Polymerization of olefins
Assignee: Standard Oil Co
•
Filing: 1943-11-13
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Granted: 1946-09-17
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Expires: 1963-11-13
Abstract
No abstract record available.
Inventors
- 👤 Bernard L Evering
- 👤 Ouville Edmond L D
- 👤 Don R Carmody
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:49
CPC Classifications
C; C07; C07C; C07C9/00; C07C9/14; C07C9/16; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/20; C07C2/22; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/271; C07C5/2718; C07C5/2721; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906; Y10S585/919; Y10S585/921; Y10S585/924; Y10S585/926
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-09-16 | 1950-03-18 | 1950-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-09-16 | 1954-03-18 | 1954-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-09-16 | 1958-03-18 | 1958-09-17 | $7700.00 | Window Closed / Lapsed |