USRE27028E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fep-fluorocarbon tubing
Assignee: —
•
Filing: 1969-11-12
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Granted: 1971-01-12
•
Expires: 1989-11-12
Abstract
Abstract This invention relates to heat shrinkable tubing of a copolymer of tetrafluoroethylene and hexafluoropropylene having specified ratios of expanded diameter to recovered diameter.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:55
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/06; B; B29; B29C; B29C61/00; B29C61/003; B29C61/06; B29C61/08; B29C48/00; B29C48/03; B29C48/09; B29K; B29K2027/00; B29K2027/12; B29K2027/18; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1328; Y10T428/1331; Y10T428/31504; Y10T428/3154
Claims Analysis
Total Claims: 0
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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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |