US2890176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized suspension of phenylmagnesium chloride and method of making same
Assignee: Primerica Inc
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Filing: 1957-01-30
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Granted: 1959-06-09
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Expires: 1977-01-30
Abstract
No abstract record available.
Inventors
- 👤 Hugh E Ramsden
- 👤 Allen E Balint
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:23
CPC Classifications
C; C07; C07F; C07F3/00; C07F3/02; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/05; Y10S516/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE METHOD OF FLUIDIZING A VISCOUS SUSPENSION OF PHENYLMAGNESIUM CHLORIDE IN CHLOROBENZENE TO PROVIDE A MIXTURE CONTAINING SUBSTANTIAL AMOUNTS OF PHENYLMAGNESIUM CHLORIDE WHICH COMPRISES ADDING TO SAID SUSPENSION A SMALL MOLAR FRACTION AS COMPARED WITH THE NUMBER OF MOLES OF PHENYLMAGNESIUM CHLORIDE PRESENT IN SAID SUSPENSION, OF A FLUIDIZER FOR SAID SUSPENSION SELECTED FROM THE CLASS CONSISTING OF TERIARY AMINES AND ETHERS. WHEREBY A MIXTURE IS PRODUCED CONSISTING PREDOMINANTLY OF PHENYLMAGNESIUM CHLORIDE AND SUSPENDING MEDIUM SAID FLUIDIZER HAVING A MOLECULAR WEIGHT WHICH DOES NOT EXCEED 600.
Claim 2
Independent Claim
86 words
THE METHOD OF FLUIDIZING A VISCOUS SUSPENSION OF PHENYLMAGNESIUM CHLORIDE IN CHLOROBENZENE TO PROVIDE A MIXTURE CONTAINING SUBSTANTIAL AMOUNTS OF PHENYLMAGNESIUM CHLORIDE WHICH COMPRISES ADDING TO SAID SUSPENSION A SMALL MOLAR FRACTION AS COMPARED WITH THE NUMBER OF MOLES OF PHENYLMAGNESIUM CHLORIDE PRESENT IN SAID SUSPENSION, OF A FLUIDIZER FOR SAID SUSPENSION SELECTED FROM THE CLASS CONSISTING OF TERIARY AMINES AND ETHERS. WHEREBY A MIXTURE IS PRODUCED CONSISTING PREDOMINANTLY OF PHENYLMAGNESIUM CHLORIDE AND SUSPENDING MEDIUM SAID FLUIDIZER HAVING A MOLECULAR WEIGHT WHICH DOES NOT EXCEED 600.
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) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |