Patent US3044984A successfully refreshed from Google Patents.
US3044984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorus containing compounds
Assignee: Microcell Ltd
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Filing: 1959-12-14
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Granted: 1962-07-17
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Expires: 1979-12-14
Abstract
No abstract record available.
Inventors
- 👤 Bloomfield Peter Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:10
CPC Classifications
C; C08; C08G; C08G79/00; C08G79/02; C08G79/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A PROCESS FOR THE PREPARATION OF PHOSPHORUS-CONTAIN ING POLYMERS WHICH PROCESS COMPRISES MIXING AT LEAST ONE DIFUNCTIONAL ORGANO-METALLIC COMPOUND HAVING THE FORMULA M-R-M WHERE M IS SELECTED FROM THE GROUP CONSISTING OF NA, K AND LI ATOMS AND MGCL, MGBR AND MGL RADICALS, AND R IS AN ORGANIC RADICAL CONTAINING UP TO ABOUT 12 CARBON ATOMS AND SELECTED FROM THE GROUP CONSISTING OF AN ALIPHATIC HYDROCARBON RADICAL AND AN AROMATIC RADICAL CONTAINING ONLY CARBON, HYDROGEN AND INERT OXYGEN ATOMS; WITH AT LEAST ONE EQUIVALENT OF AT LEAST ONE ORGANO-PHOSPHORUS COMPOUND HAVING THE FORMULA SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
99 words
A PROCESS FOR THE PREPARATION OF PHOSPHORUS-CONTAIN ING POLYMERS WHICH PROCESS COMPRISES MIXING AT LEAST ONE DIFUNCTIONAL ORGANO-METALLIC COMPOUND HAVING THE FORMULA M-R-M WHERE M IS SELECTED FROM THE GROUP CONSISTING OF NA, K AND LI ATOMS AND MGCL, MGBR AND MGL RADICALS, AND R IS AN ORGANIC RADICAL CONTAINING UP TO ABOUT 12 CARBON ATOMS AND SELECTED FROM THE GROUP CONSISTING OF AN ALIPHATIC HYDROCARBON RADICAL AND AN AROMATIC RADICAL CONTAINING ONLY CARBON, HYDROGEN AND INERT OXYGEN ATOMS; WITH AT LEAST ONE EQUIVALENT OF AT LEAST ONE ORGANO-PHOSPHORUS COMPOUND HAVING THE FORMULA SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
FR1167050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |