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US3684602A Expired / Lapsed US ⏱️ 0.0 years remaining

Manufacture of flexible hose pipes

Assignee: George Angus and Co Ltd
•
Filing: 1969-08-08
•
Granted: 1972-08-15
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Expires: 1989-08-08
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Abstract

Abstract A METHOD OF MANUFACTURING A FLEXIBLE HOSE PIPE COMPRISING AN INNER TUBULAR LAYER OF RUBBER, A SURROUNDING LAPPED OR BRAIDED REINFORCEMENT OF METAL WIRE OR MONOFILAMENT PLASTICS MATERIAL AND AN OUTER COVER OF SYNTHETIC RUBBER, IN WHICH A THIN SHEATH OF EXPENDABLE RUBBER IS APPLIED OVER THE OUTER COVER TO PROTECT IT DURING VULCANIZATION AND IS STRIPED FROM THE HOSE ASSEMBLY AFTER IT HAS BEEN VULCANIZED.

Inventors

  • 👤 Eric Ball

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 17:40
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; B29C; B29C48/00; B29C48/15; B29C48/151; B29C48/152; B29C48/153; B29C48/001; B29C48/0021; B29C48/0022; B29C48/03; B29C48/09; B29C48/16; B29C48/18; B29C48/21; B29K; B29K2021/00; B29K2105/00; B29K2105/06; B29L; B29L2023/00; B29L2023/005

Claims Analysis

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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) 1975-08-15 1976-02-14 1976-08-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-08-15 1980-02-14 1980-08-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-08-15 1984-02-14 1984-08-15 $7700.00 Window Closed / Lapsed

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