Patent US2817364A successfully refreshed from Google Patents.
US2817364A
Expired / Lapsed
US
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Welded tubing
Assignee: Individual
•
Filing: 1952-11-13
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Granted: 1957-12-24
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Expires: 1972-11-13
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Crawford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:02
CPC Classifications
B; B23; B23K; B23K13/00; B23K13/01; B23K13/02; B21; B21C; B21C37/00; B21C37/06; B21C37/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
AS A NEW ARTICLE OF MANUFACTURE, THIN-WALLED RE SISTANCE-WELDED ALUMINUM ALLOY TUBING HAVING A LONGITUDINALLY CONTINUOUS CAST-WELD OF THE SAME METAL THE WIDTH OF WHICH IS UNIFORM AND NO GREATER THAN APPROXIMATELY 20% OF THE WALL THICKNESS.
Claim 2
Dependent Claim
37 words
AS A NEW ARTICLE OF MANUFACTURE, THIN-WALLED RE SISTANCE-WELDED ALUMINUM ALLOY TUBING HAVING A LONGITUDINALLY CONTINUOUS CAST-WELD OF THE SAME METAL THE WIDTH OF WHICH IS UNIFORM AND NO GREATER THAN APPROXIMATELY 20% OF THE WALL THICKNESS.
References Cited (Backward Citations)
US1435306A
Cited
US1488585A
Cited
US1767220A
Cited
US1895133A
Cited
US1930191A
Cited
US2023086A
Cited
US2030906A
Cited
US2147868A
Cited
US2296435A
Cited
US2388563A
Cited
US2417594A
Cited
US2629806A
Cited
US2629811A
Cited
US2630514A
Cited
US2687464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |