US3086056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphines
Assignee: American Potash and Chemical Corp
•
Filing: 1960-07-08
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Granted: 1963-04-16
•
Expires: 1980-07-08
Abstract
No abstract record available.
Inventors
- 👤 Ross I Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:57
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6568; C07F9/65683
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
THE DIFUNCTIONAL PHOSPHINE (CH2)N(PHR)2 WHERE R IS SELECTED FROM THE GROUP CONSISTING OF H, ALKYL, PHENYL, LOWER ALKYL-SUBSTITUTED PHENYL AND HALO-SUBSTITUTED PHENYL RADICALS AND N IS AN INTEGER FROM THREE TO SEVEN.
Claim 2
Dependent Claim
32 words
THE DIFUNCTIONAL PHOSPHINE (CH2)N(PHR)2 WHERE R IS SELECTED FROM THE GROUP CONSISTING OF H, ALKYL, PHENYL, LOWER ALKYL-SUBSTITUTED PHENYL AND HALO-SUBSTITUTED PHENYL RADICALS AND N IS AN INTEGER FROM THREE TO SEVEN.
References Cited (Backward Citations)
US2642461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |