US2776465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Highly oriented shaped tetrafluoroethylene article and process for producing the same
Assignee: EIDP Inc
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Filing: 1954-08-12
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Granted: 1957-01-08
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Expires: 1974-08-12
Abstract
No abstract record available.
Inventors
- 👤 Jack C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:54
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/02; D01F6/08; D01F6/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
23 words
A HIGHLY ORIENTED SHAPED ARTICLE OF A TETRAFLUOROETHYLENE POLYMER HAVING A TENACITY ABOVE ABOUT 1.0 GRAM PER DENIER WHEN MEASURED AT ROOM TEMPERATURE.
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) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |