US3290771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for joining lined tubular elements
Assignee: Shok Lok Co
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Filing: 1965-07-15
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Granted: 1966-12-13
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Expires: 1985-07-15
Abstract
No abstract record available.
Inventors
- 👤 Silverman Daniel
- 👤 Harold M Lang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:53
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/14; F16L13/147; B; B21; B21D; B21D39/00; B21D39/04; B21D39/042; B29; B29C; B29C65/00; B29C65/56; B29C65/565; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C66/5221; B29C66/5229; B29C66/52291; B29C66/52298; B29C66/70; B29C66/72; B29C66/723; B29C66/7232; B29C66/72321; B29C66/80; B29C66/81; B29C66/812; B29C66/8124; B29C66/81241; B29C66/814; B29C66/8141; B29C66/81431; B29C66/82; B29C66/828; F16L13/16; F16L13/166; F16L58/00; F16L58/18; F16L58/181; B29C65/567; B29C66/81411; B29C66/81421; B29C66/81423; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49826; Y10T29/49908; Y10T29/49938; Y10T29/4994
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
THE METHOD OF JOINING TOGETHER TWO TUBULAR METAL ELEMENTS OF DIFFERENT DIAMETERS EACH CONTAINING A SEPARATE THIN-WALLED LINER COMPRISING (A) INSERTING A FIRST LINER INTO THE SMALLER OF SAID ELEMENTS SO THAT SAID LINER EXTENDS BEYOND THE END OF SAID ELEMENT BY A DISTANCE APPROXIMATELY EQUAL TO D, (B) FOLDING BACK OVER THE END OF SAID ELEMENT SAID EXTENDED TUBING IN THE FORM OF A CUFF, (C) INSERTING A SECOND LINER INTO THE LARGER OF SAID ELEMENTS SO THAT THE LINER COMES AT LEAST TO THE END OF SAID ELEMENT,
Claim 2
Independent Claim
90 words
THE METHOD OF JOINING TOGETHER TWO TUBULAR METAL ELEMENTS OF DIFFERENT DIAMETERS EACH CONTAINING A SEPARATE THIN-WALLED LINER COMPRISING (A) INSERTING A FIRST LINER INTO THE SMALLER OF SAID ELEMENTS SO THAT SAID LINER EXTENDS BEYOND THE END OF SAID ELEMENT BY A DISTANCE APPROXIMATELY EQUAL TO D, (B) FOLDING BACK OVER THE END OF SAID ELEMENT SAID EXTENDED TUBING IN THE FORM OF A CUFF, (C) INSERTING A SECOND LINER INTO THE LARGER OF SAID ELEMENTS SO THAT THE LINER COMES AT LEAST TO THE END OF SAID ELEMENT,
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |