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US3475471A
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Pi-allyl metal complexes
Assignee: Phillips Petroleum Co
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Filing: 1967-04-04
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Granted: 1969-10-28
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Expires: 1987-04-04
Abstract
No abstract record available.
Inventors
- 👤 Perry L Maxfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:58
CPC Classifications
C; C07; C07F; C07F17/00; B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1805; B01J31/181; B01J31/1895; B01J31/22; B01J31/2204; B01J31/226; B01J31/2282; B01J31/2291; B01J31/24; B01J31/2404; C07F11/00; C07F13/00; C07F15/00; C07F15/0006; C07F15/02; C07F15/04; C07F7/00; B01J2531/00; B01J2531/40; B01J2531/46; B01J2531/50; B01J2531/56; B01J2531/60; B01J2531/62; B01J2531/64; B01J2531/70; B01J2531/74; B01J2531/80; B01J2531/82; B01J2531/822; B01J2531/824; B01J2531/825; B01J2531/827; B01J2531/828; B01J2531/84; B01J2531/842
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE631172A
Cited
US3379706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |