US2528758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas shielded induction fusion welding process
Assignee: Linde Air Products Co
•
Filing: 1948-07-10
•
Granted: 1950-11-07
•
Expires: 1968-07-10
Abstract
No abstract record available.
Inventors
- 👤 Barnwell R King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:54
CPC Classifications
B; B23; B23K; B23K13/00; B23K13/01; B23K13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE461139A
Cited
US1915047A
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GB467308A
Cited
US2237309A
Cited
US2290338A
Cited
US2405542A
Cited
US2367715A
Cited
US2460687A
Cited
US2455560A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |