US2656331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspensions of polymeric chlorotrifluoroethylene
Assignee: General Electric Co
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Filing: 1953-01-16
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Granted: 1953-10-20
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Expires: 1973-01-16
Abstract
No abstract record available.
Inventors
- 👤 Murray M Sprung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:05
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J3/095; C08J2327/00; C08J2327/02; C08J2327/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A LIQUID SUSPENSION COMPRISING A DISPERSED PHASE CONSISTING ESSENTIALLY OF FINELY DIVIDED, SOLID, HIGH MOLECULAR WEIGHT POLYCHLOROTRIFLUOROETHYLENE AND A DISPERSING MEDIUM FOR THE SOLID POLYCHLOROTRIFLUOROETHYLENE COMPRISING (1) AN ORGANIC LIQUID WHICH IS A SOLVENT FOR THE AFORESAID SOLID POLYMER AT ELEVATED TEMPERATURES BUT WHOSE SOLVENT CHARACTERISTIC IS EFFECTIVE AT A TEMPERATURE BELOW THE BOILING POINT OF THE LIQUID, THE AFORESAID LIQUID BEING SELECTED FROM THE CLASS CONSISTING OF NUCLEARLY FLUORINATED AROMATIC HYDROCARBONS CONTAINING TWO AROMATIC NUCLEI FREE OF OTHER SUBSTITUENTS AND HALOGENATED LOWER ALKYLSUBSTITUTED AROMATIC HYDROCARBONS CONTAINING FLUORINE IN THE ALKYL SUBSTITUENT, THE AFORESAID AORMATIC HYDROCARBONS BOTH BOILING ABOVE 110* C. AND (2) A NON-SOLVENT LIQUID OXYGEN-CONTAINING DILUENT HAVING A BOILING POINT ABOVE 50* C. AND SELECTED FROM THE CLASS CONSISTING OF SATURATED ALIPHATIC ETHERS, SATURATED ALIPHATIC MONOHYDRIC ALCOHOLS, SATURATED ALIPHATIC KETONES, SATURATED ALIPHATIC ESTERS, MIXTURES OF MONOHYDRIC SATURATED ALIPHATIC ALCOHOLS AND DIHYDRIC SATURATED ALIPHATIC ALCOHOLS, AND MIXTURES OF THE FOREGOING OXYGEN-CONTAINING COMPOUNDS.
Claim 2
Dependent Claim
153 words
A LIQUID SUSPENSION COMPRISING A DISPERSED PHASE CONSISTING ESSENTIALLY OF FINELY DIVIDED, SOLID, HIGH MOLECULAR WEIGHT POLYCHLOROTRIFLUOROETHYLENE AND A DISPERSING MEDIUM FOR THE SOLID POLYCHLOROTRIFLUOROETHYLENE COMPRISING (1) AN ORGANIC LIQUID WHICH IS A SOLVENT FOR THE AFORESAID SOLID POLYMER AT ELEVATED TEMPERATURES BUT WHOSE SOLVENT CHARACTERISTIC IS EFFECTIVE AT A TEMPERATURE BELOW THE BOILING POINT OF THE LIQUID, THE AFORESAID LIQUID BEING SELECTED FROM THE CLASS CONSISTING OF NUCLEARLY FLUORINATED AROMATIC HYDROCARBONS CONTAINING TWO AROMATIC NUCLEI FREE OF OTHER SUBSTITUENTS AND HALOGENATED LOWER ALKYLSUBSTITUTED AROMATIC HYDROCARBONS CONTAINING FLUORINE IN THE ALKYL SUBSTITUENT, THE AFORESAID AORMATIC HYDROCARBONS BOTH BOILING ABOVE 110* C. AND (2) A NON-SOLVENT LIQUID OXYGEN-CONTAINING DILUENT HAVING A BOILING POINT ABOVE 50* C. AND SELECTED FROM THE CLASS CONSISTING OF SATURATED ALIPHATIC ETHERS, SATURATED ALIPHATIC MONOHYDRIC ALCOHOLS, SATURATED ALIPHATIC KETONES, SATURATED ALIPHATIC ESTERS, MIXTURES OF MONOHYDRIC SATURATED ALIPHATIC ALCOHOLS AND DIHYDRIC SATURATED ALIPHATIC ALCOHOLS, AND MIXTURES OF THE FOREGOING OXYGEN-CONTAINING COMPOUNDS.
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) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |