Patent US2517622A successfully refreshed from Google Patents.
US2517622A
Expired / Lapsed
US
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Pierce severing
Assignee: Linde Air Products Co
•
Filing: 1947-06-20
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Granted: 1950-08-08
•
Expires: 1967-06-20
Abstract
No abstract record available.
Inventors
- 👤 Roger S Babcock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:33
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/002; B23K7/003; Y; Y10; Y10S; Y10S266/00; Y10S266/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US866866A
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DE426990C
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US1723107A
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US2202130A
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US2204756A
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US2302164A
Cited
US2290295A
Cited
US2363089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |