US3394738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filament wound vessel
Assignee: AO Smith Corp
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Filing: 1966-05-20
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Granted: 1968-07-30
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Expires: 1986-05-20
Abstract
No abstract record available.
Inventors
- 👤 David J Baron
- 👤 Stanley S H Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:21
CPC Classifications
B; B65; B65D; B65D13/00; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; B29C53/602
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A STRUCTURAL ARTICLE, COMPRISING A CYLINDRICAL WALL HAVING A LONGITUDINAL AXS AND FORMED OF A CURED THERMOSETTING RESIN REINFORCED BY FIBROUS MATERIAL, SAID WALL HAVING AN OPENING THEREIN, AND AN ANNULAR PATCH HAVING ONE SURFACE BONDED TO THE WALL AND HAVING THE OPPOSITE SURFACE EXPOSED, SAID PATCH HAVING AN OPENING DISPOSED IN ALIGNMENT WITH THE OPENING IN SAID WALL AND SAID PATCH BEING FORMED OF A PLURALITY OF GENERALLY STRAIGHT FIBERS BONDED BY A CURED THERMOSETTING RESIN WITH ALL OF THE FIBERS ARRANGED AT AN ANGLE OF 63* TO 69* WITH RESPECT TO SAID LONGITUDINAL AXIS.
Claim 2
Dependent Claim
96 words
A STRUCTURAL ARTICLE, COMPRISING A CYLINDRICAL WALL HAVING A LONGITUDINAL AXS AND FORMED OF A CURED THERMOSETTING RESIN REINFORCED BY FIBROUS MATERIAL, SAID WALL HAVING AN OPENING THEREIN, AND AN ANNULAR PATCH HAVING ONE SURFACE BONDED TO THE WALL AND HAVING THE OPPOSITE SURFACE EXPOSED, SAID PATCH HAVING AN OPENING DISPOSED IN ALIGNMENT WITH THE OPENING IN SAID WALL AND SAID PATCH BEING FORMED OF A PLURALITY OF GENERALLY STRAIGHT FIBERS BONDED BY A CURED THERMOSETTING RESIN WITH ALL OF THE FIBERS ARRANGED AT AN ANGLE OF 63* TO 69* WITH RESPECT TO SAID LONGITUDINAL AXIS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |