US3054428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite laminated tubular member
Assignee: Westinghouse Electric Corp
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Filing: 1959-10-22
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Granted: 1962-09-18
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Expires: 1979-10-22
Abstract
No abstract record available.
Inventors
- 👤 Thomas G Crawford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:39
CPC Classifications
B; B32; B32B; B32B27/00; B29; B29C; B29C53/00; B29C53/56; B29C53/562; D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; B29K; B29K2061/00; B29K2061/04; B29K2711/00; B29K2711/12; B29K2711/126; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31964; Y10T428/31967
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
75 words
A COMPOSITE LAMINATED TUBULAR MEMBER COMPRISING (1) AN INNER LAYER COMPRISING AT LEAST ONE PLY OF DECORATED PIGMENTED PAPER SHEETING IMPREGNATED AND BONDED TOGETHER BY A THERMOSET PLASTICIZED MELAMINE-ALDEHYDE RESIN, (2) AN INTERMEDIATE LAYER COMPRISING AT LEAST ONE PLY OF PAPER SHEETING IMPREGNATED AND BONDED TOGETHER BY A THERMOSET RESIN COMPOSITION COMPRISING (A) FROM 98% TO 88% BY WEIGHT OF A PHENOL-ALDEHYDE RESIN AND (B) FROM 2% TO 12% BY WEIGHT OF A GLYCIDYL POLYETHER
References Cited (Backward Citations)
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US2795241A
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US2801198A
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US2857932A
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US2945638A
Cited
US2976889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |