US4576207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Texturized heat shrinkable tubing having radial and longitudinal shrinkage memory
Assignee: Essex Technology Inc
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Filing: 1983-02-11
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Granted: 1986-03-18
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Expires: 2003-02-11
Abstract
Abstract A heat shrinkable tubing is described which has a texturized surface. Upon applying the heat shrinkable tubing to a complex shaped object and applying heat the tubing shrinks radially and linearly, uniformly so as to preserve the texturized friction surface, shrinking over depressions and expansions of the complex surface without wrinkling.
Inventors
- 👤 Herbert R. Levine
- 👤 Stephen G. Gerrato
- 👤 Benoit L. Poulin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:22
CPC Classifications
F; F16; F16L; F16L47/00; F16L47/20; F16L47/22; B; B29; B29C; B29C61/00; B29C61/06; B29C61/0608; B29C61/08; B29L; B29L2023/00; Y; Y10; Y10S; Y10S174/00; Y10S174/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
Heat shrinkable tubing comprising tubular polymeric material having radial shrinkage memory and about 5% to about 30% longitudinal shrinkage memory and having substantially parallel raised portions extending along its entire length, such tubing capable of shrinking in response to heat over bent, expanded and depressed substrate material in uniform, unwrinkled fashion while maintaining the substantially parallel raised portions extending along its entire length.
Claim 2
Dependent Claim
63 words
Heat shrinkable tubing comprising tubular polymeric material having radial shrinkage memory and about 5% to about 30% longitudinal shrinkage memory and having substantially parallel raised portions extending along its entire length, such tubing capable of shrinking in response to heat over bent, expanded and depressed substrate material in uniform, unwrinkled fashion while maintaining the substantially parallel raised portions extending along its entire length.
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US3513429A
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US4325998A
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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) | 1989-03-17 | 1989-09-16 | 1990-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-17 | 1993-09-16 | 1994-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-17 | 1997-09-16 | 1998-03-18 | $7700.00 | Window Closed / Lapsed |