US2644802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tetrafluoroethylene polymer compositions containing polyorganosiloxane lubricants
Assignee: EIDP Inc
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Filing: 1950-06-30
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Granted: 1953-07-07
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Expires: 1970-06-30
Abstract
No abstract record available.
Inventors
- 👤 Lontz John Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:28
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/12; C08L27/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A NON-AQUEOUS PRESSURE-COALESCING COMPOSITION WHICH COMPRISES COAGULATED TETRAFLUOROETHYLENE POLYMER PARTICLES OF COLLIODAL SIZE INTIMATELY ADMIXED WITH A LIQUID POLYORGANOSILOXANE CONSISTING ESSENTIALLY OF RECURRING UNITS OF THE FORMULA
Claim 2
Dependent Claim
27 words
A NON-AQUEOUS PRESSURE-COALESCING COMPOSITION WHICH COMPRISES COAGULATED TETRAFLUOROETHYLENE POLYMER PARTICLES OF COLLIODAL SIZE INTIMATELY ADMIXED WITH A LIQUID POLYORGANOSILOXANE CONSISTING ESSENTIALLY OF RECURRING UNITS OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |