US3141479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluxing pipe and method of making the same or the like
Assignee: CONSOLIDATED PORCELAIN ENAMEL CO
•
Filing: 1961-07-27
•
Granted: 1964-07-21
•
Expires: 1981-07-27
Abstract
No abstract record available.
Inventors
- 👤 Walter W Mickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:24
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/14; C; C23; C23D; C23D5/00; Y; Y10; Y10S; Y10S228/00; Y10S228/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
AN ELONGATE HOLLOW TUBULAR STRUCTURE, COMPRISING A HOLLOW METAL TUBE HAVING AN EXTERIOR SURFACE AND AN INTERIOR SURFACE, A COATING OF CERAMIC MATERIAL ON AND FUSED TO EACH OF SAID SURFACES, A TUBULAR CERAMIC MEMBER CONCENTRIC WITH SAID METAL TUBE AND HAVING A SURFACE IN OPPOSING RELATIONSHIP WITH ONE OF SAID COATINGS, AND A LAYER OF A BONDING AGENT BETWEEN SAID SURFACE OF SAID TUBULAR CERAMIC MEMBER AND SAID ONE OF SAID COATINGS OF CERAMIC MATERIAL, SAID BONDING AGENT SECURING SAID CERAMIC MEMBER TO SAID ONE OF SAID COATINGS WHEREBY SAID METAL TUBE, SAID CERAMIC COATINGS, AND SAID CERAMIC MEMBER FORM A UNITARY HEAT AND CORROSION RESISTANT STRUCTURE.
Claim 2
Dependent Claim
108 words
AN ELONGATE HOLLOW TUBULAR STRUCTURE, COMPRISING A HOLLOW METAL TUBE HAVING AN EXTERIOR SURFACE AND AN INTERIOR SURFACE, A COATING OF CERAMIC MATERIAL ON AND FUSED TO EACH OF SAID SURFACES, A TUBULAR CERAMIC MEMBER CONCENTRIC WITH SAID METAL TUBE AND HAVING A SURFACE IN OPPOSING RELATIONSHIP WITH ONE OF SAID COATINGS, AND A LAYER OF A BONDING AGENT BETWEEN SAID SURFACE OF SAID TUBULAR CERAMIC MEMBER AND SAID ONE OF SAID COATINGS OF CERAMIC MATERIAL, SAID BONDING AGENT SECURING SAID CERAMIC MEMBER TO SAID ONE OF SAID COATINGS WHEREBY SAID METAL TUBE, SAID CERAMIC COATINGS, AND SAID CERAMIC MEMBER FORM A UNITARY HEAT AND CORROSION RESISTANT STRUCTURE.
References Cited (Backward Citations)
US269749A
Cited
US446860A
Cited
US895412A
Cited
US930927A
Cited
US1467563A
Cited
US2464487A
Cited
US2516242A
Cited
US2616408A
Cited
US2640503A
Cited
FR1183341A
Cited
US3044499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |