US3432915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weld backing member and method of forming welded joints in metallic members or between metallic members
Assignee: Stewarts and Lloyds Ltd
•
Filing: 1963-12-02
•
Granted: 1969-03-18
•
Expires: 1983-12-02
Abstract
No abstract record available.
Inventors
- 👤 William Francis Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:36
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/035; B23K33/00; B23K33/004; B23K33/006; B23K9/028; B23K9/0282
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2294439A
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US2320700A
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US2362505A
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US2472523A
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US2707691A
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US2673916A
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US2916001A
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US2786934A
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US2796843A
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US3227349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |