Patent US3752719A successfully refreshed from Google Patents.
US3752719A
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US
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Method of making hose or other tubular bodies of curable elastomeric material
Assignee: Goodall Rubber Co
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Filing: 1970-05-15
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Granted: 1973-08-14
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Expires: 1990-05-15
Abstract
Abstract BIAXIALLY ORIENTED HEAT SHRINKABLE PLASTIC FILM IS WRAPPED AROUND A MANDREL-SUPPORTED TUBULAR BODY OF UNCURED ELASTOMERIC MATERIAL SO THAT THE APPLICATION OF CURING HEAT WILL CAUSE THE FILM OF SHIRNK IN DIRECTIONS WHICH LIE AXIALLY AND CIRCUMFERENTIALLY OF THE TUBULAR BODY AND REMOVE WRINKLES IN THE FILM AND COMPRESS THE TUBULAR BODY.
Inventors
- 👤 C Borden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:33
CPC Classifications
B; B32; B32B; B32B1/00; B32B1/08; B29; B29C; B29C61/00; B29C61/006; B29D; B29D23/00; B29D23/001; B32B25/00; B32B25/04; B32B25/08; B29K; B29K2021/00; B32B2307/00; B32B2307/50; B32B2307/514; B32B2307/518; B32B2597/00
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) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |