US2900138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal powder welding apparatus
Assignee: Individual
•
Filing: 1954-04-05
•
Granted: 1959-08-18
•
Expires: 1974-04-05
Abstract
No abstract record available.
Inventors
- 👤 Frank R Strate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:23
CPC Classifications
B; B23; B23K; B23K5/00; B23K5/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1441094A
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US1654509A
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Cited
US2146315A
Cited
US2317173A
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US2389702A
Cited
US2533331A
Cited
US2568332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |