US2716690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing galvanized parts for welding
Assignee: AO Smith Corp
•
Filing: 1950-07-08
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Granted: 1955-08-30
•
Expires: 1970-07-08
Abstract
No abstract record available.
Inventors
- 👤 Lund Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:53
CPC Classifications
B; B23; B23K; B23K13/00; H; H05; H05B; H05B6/00; H05B6/02; H05B6/36; H05B6/362
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1190208A
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US1150560A
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US1971822A
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US2024906A
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US2170019A
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US2363990A
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US2477411A
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US2528758A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-29 | 1959-02-28 | 1959-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-29 | 1963-02-28 | 1963-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-29 | 1967-02-28 | 1967-08-30 | $7700.00 | Window Closed / Lapsed |