US3051683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polytetrafluoroethylene-hexafluoro-propylene-tetrafluoroethylene copolymer colloidalblend and article thereof
Assignee: EIDP Inc
•
Filing: 1959-11-10
•
Granted: 1962-08-28
•
Expires: 1979-11-10
Abstract
No abstract record available.
Inventors
- 👤 Mailouk Robert Salim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:11
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/12; C08L27/18; C08L2205/00; C08L2205/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A COMPOSITION OF MATTER COMPRISING A HOMOGENEOUS COLLOIDAL BLEND OF 65 TO 99 WEIGHT PERCENT OF COLLOIDAL POLYTETRAFLURORETHYLENE AND COMPLEMENTALLY THEREWITH 35 TO 1 WEIGHT PERCENT OF A COLLOIDAL COPOLYMER OF HEXAFLURORPROPYLENE AND TETRAFLUORETHYLENE, SAID COPOLYMER HAVING A HEXAFLUOROPROPYLENE CONTENT OF 6.5 TO 27 WEIGHT PERCENT AND A SPECIFIC MELT VISCOSITY OF 1.5X103 TO 3X105 POISES, SAID HOMOGENEOUS BLEND HAVING A HEXAFLUOROPROPYLENE CONTENT OF FROM 0.5 TO 8%.
Claim 2
Dependent Claim
68 words
A COMPOSITION OF MATTER COMPRISING A HOMOGENEOUS COLLOIDAL BLEND OF 65 TO 99 WEIGHT PERCENT OF COLLOIDAL POLYTETRAFLURORETHYLENE AND COMPLEMENTALLY THEREWITH 35 TO 1 WEIGHT PERCENT OF A COLLOIDAL COPOLYMER OF HEXAFLURORPROPYLENE AND TETRAFLUORETHYLENE, SAID COPOLYMER HAVING A HEXAFLUOROPROPYLENE CONTENT OF 6.5 TO 27 WEIGHT PERCENT AND A SPECIFIC MELT VISCOSITY OF 1.5X103 TO 3X105 POISES, SAID HOMOGENEOUS BLEND HAVING A HEXAFLUOROPROPYLENE CONTENT OF FROM 0.5 TO 8%.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |