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Patent US2941008A successfully refreshed from Google Patents.
US2941008A
Expired / Lapsed
US
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Phosphine borines and their preparation
Assignee: American Potash and Chemical Corp
•
Filing: 1959-03-02
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Granted: 1960-06-14
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Expires: 1979-03-02
Abstract
No abstract record available.
Inventors
- 👤 Ross I Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:34
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/50; C07F9/5045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
COMPOUNDS OF THE GENERAL FORMULA
Claim 2
Dependent Claim
5 words
COMPOUNDS OF THE GENERAL FORMULA
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) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |