US3531619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for powder shield or gas-shield arc welding with a consumable electrode
Assignee: Koninklijke de Schelde Mij NV
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Filing: 1968-10-25
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Granted: 1970-09-29
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Expires: 1988-10-25
Abstract
No abstract record available.
Inventors
- 👤 Johannes Jacobus Broodman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:36
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/09; B23K9/091; B23K9/092; B23K33/00; B23K33/004; B23K9/16; B23K9/173; B23K9/18; B23K9/186
Claims Analysis
Total Claims: 0
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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) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |