Patent US3673028A successfully refreshed from Google Patents.
US3673028A
Expired / Lapsed
US
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Glass fiber container and method of construction
Assignee: Owens Corning
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Filing: 1969-10-01
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Granted: 1972-06-27
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Expires: 1989-10-01
Abstract
Abstract A FILAMENT-WOUND GLASS FIBER CONTAINER OF A HOLLOW TUBULAR CONFIGURATION HAVING A WALL COMPOSED OF A PLURALITY OF DISCONTINUOUS AXIALLY OVERLAPPING SECTIONS INTEGRATED WITH ONE ANOTHER AT THE AREAS OF OVERLAP TO FORM A HOMOGENEOUS MONOLITHIC BODY. ALSO DISCLOSED IS A METHOD OF PRODUCING THE CONTAINER. THE METHOD INCLUDES THE STEPS OF SIMULTANEOUSLY WINDING A PLURALITY OF SPACED APART AXIALLY ALIGNED GROUPS OF RESIN SATURATED GLASS FIBER STRANDS ON A CORE, EACH GROUP BEING WOUND IN PARTIALLY OVERLAPPING RELATION TO THE GROUP OR GROUPS IMMEDIATELY ADJACENT TO IT AND FORMING A PREDETERMINED SECTION OF THE WALL OF THE CONTAINER. THEREAFTER THE RESIN IS CURED.
Inventors
- 👤 Lee E Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:17
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/583; B29C53/587; B29K; B29K2309/00; B29K2309/08
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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |