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US2198085A
Expired / Lapsed
US
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Apparatus for applying flux to welding rod
Assignee: Keppel LeTourneau USA Inc
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Filing: 1938-02-23
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Granted: 1940-04-23
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Expires: 1958-02-23
Abstract
No abstract record available.
Inventors
- 👤 Tourneau Robert G Le
- 👤 Elmer E Isgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:28
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/34; B29C48/03; B29C48/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-04-23 | 1943-10-23 | 1944-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-04-23 | 1947-10-23 | 1948-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-04-23 | 1951-10-23 | 1952-04-23 | $7700.00 | Window Closed / Lapsed |