US3234970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin-bonded fibre structures
Assignee: Rolls Royce Composite Materials Ltd
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Filing: 1965-01-26
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Granted: 1966-02-15
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Expires: 1985-01-26
Abstract
No abstract record available.
Inventors
- 👤 Baker William Andrew
- 👤 Shoemack Donald Arthur
- 👤 Murray Victor Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:53
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/24; B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; F16L9/00; F16L9/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PIPE FORMED BY RESIN-BONDED FIBER AND HAVING, FOR INTERNAL PROTECTION, AN INNER FACING LAYER OF A RESINBONDED FIBER OF MATERIAL SUCH THAT THE LAYER IS MORE RESISTANT TO ABRASION OR CHEMICAL ATTACK THAN WOULD BE A LAYER OF THE BASIC FIBER WHICH FORMS THE BODY OF THE PIPE, AND A SECOND LAYER LYING BETWEEN THE FACING LAYER AND THE BODY OF THE PIPE AND CONSISTING OF CLOTH FORMED FROM A FIBER OF MATERIAL STRONGER THAN THAT OF THE FIBER IN THE FACING LAYER AND BONDED BY RESIN.
Claim 2
Dependent Claim
88 words
A PIPE FORMED BY RESIN-BONDED FIBER AND HAVING, FOR INTERNAL PROTECTION, AN INNER FACING LAYER OF A RESINBONDED FIBER OF MATERIAL SUCH THAT THE LAYER IS MORE RESISTANT TO ABRASION OR CHEMICAL ATTACK THAN WOULD BE A LAYER OF THE BASIC FIBER WHICH FORMS THE BODY OF THE PIPE, AND A SECOND LAYER LYING BETWEEN THE FACING LAYER AND THE BODY OF THE PIPE AND CONSISTING OF CLOTH FORMED FROM A FIBER OF MATERIAL STRONGER THAN THAT OF THE FIBER IN THE FACING LAYER AND BONDED BY RESIN.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |