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US3530898A Expired / Lapsed US ⏱️ 0.0 years remaining

Closure sleeve

Assignee: Raychem Corp
•
Filing: 1968-10-30
•
Granted: 1970-09-29
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Expires: 1988-10-30
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Abstract

Abstract 1,266,719. Cover sleeves. RAYCHEM CORP. 23 Oct., 1969 [30 Oct., 1968], No. 52004/69. Heading B8C. [Also in Divisions D1, F2, H1 and H2] A cover sleeve comprises a sheet 10 of heatshrinkable material having interengaging rows of staggered loops 15, 16 at the edges thereof and a connecting rod 19 passing through the loops. The sheet 10 has two rows of staggered holes 11, 12 which on folding the sheet form the loops 15, 16. The rod 19 may be of P.T.F.E. and have a metallic core. The sheet 10 may have a coating of mastic to enhance the seal when the sleeve is heat shrunk on to an object such as a pipe- or cable-coupling. The sheet 10 may contain aluminium trichloride or be coated with potassium nitrate, which when activated generates the heat for shrinking.

Inventors

  • 👤 John R Wilson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 08:36
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/10; B; B29; B29C; B29C61/00; B29C61/06; B29C61/10; B29C65/00; B29C65/56; B29C65/562; B29C65/564; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/13; B29C66/135; B29C66/1352; B29C66/20; B29C66/22; B29C66/221; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/4322; B29C66/70; B29C66/73; B29C66/737; B29C66/7371; B29C66/73715; F16L47/00; F16L47/20; F16L47/22; F16L58/00; F16L58/02; F16L58/04; F16L58/10; F16L58/1054; F16L58/1063; F16L59/02; F16L59/021; F16L9/00; F16L9/17

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1973-09-28 1974-03-30 1974-09-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1977-09-28 1978-03-30 1978-09-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1981-09-28 1982-03-30 1982-09-29 $7700.00 Window Closed / Lapsed

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