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US3674393A Expired / Lapsed US ⏱️ 0.0 years remaining

Device for applying liners of thermoplastic material to closure caps or the like

Assignee: Individual
•
Filing: 1970-07-23
•
Granted: 1972-07-04
•
Expires: 1990-07-23
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Abstract

Abstract A DEVICE FOR FORMING INNER COATING OF THERMOPLASTIC MATERIAL IN SEALING CAPS HAS A SHAFT MOUNTED FOR ROTATION ABOUT A VERTICAL AXIS, A PLATFORM SECURED TO THE SHAFT, BEARERS FOR THE SEALING CAPS COAXIAL WITH THE SHAFT AND SLIDABLY MOUNTED IN THE PLATFORM, A PLATE FIXED TO THE SHAFT ABOVE THE PLATFORM, AND COMPRESSION PLUNGERS MOUNTED IN THE PLATE IN REGISTER WITH THE BEARERS, A SEALING CAP BEING PLACED ON A BEARERS CONCAVE SIDE UPWARDS AND CONTAINING A METERED, WARM AND CONSEQUENTLY PLASTICALLY DEFORMABLE PLASTIC COMPOSITION WHICH IS FORMED INTO AN INNER COATING IN THE SEALING CAP BY RELATIVE DISPLACEMENT BETWEEN THE COMPRESSION PLUNGER AND THE SEALING CAP BEARER.

Inventors

  • 👤 Ettore Busi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 07:37
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/32; B29C43/34; B29C43/02; B29C43/04; B29C43/06; B29C43/08; B29C2043/3433; B29C43/36; B29C43/361; B29C2043/3615; B29C2043/3626; Y; Y10; Y10S; Y10S425/00; Y10S425/809

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) 1975-07-04 1976-01-03 1976-07-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-07-04 1980-01-03 1980-07-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-07-04 1984-01-03 1984-07-04 $7700.00 Window Closed / Lapsed

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