US2742553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submerged arc welding method and apparatus
Assignee: Graver Energy Systems Inc
•
Filing: 1954-02-15
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Granted: 1956-04-17
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Expires: 1974-02-15
Abstract
No abstract record available.
Inventors
- 👤 Amel R Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:53
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/0209
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1539383A
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US2269538A
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US2395723A
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US2390560A
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US2357376A
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US2432495A
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US2673916A
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US2677036A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |