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US1280823A
Expired / Lapsed
US
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Mechanism for closing and finishing the ends of metal tubes.
Assignee: John Oster Manufacturing Co
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Filing: 1917-01-13
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Granted: 1918-10-08
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Expires: 1937-01-13
Abstract
No abstract record available.
Inventors
- 👤 Herman W Oster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:18
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/14; B23K1/16
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) | 1921-10-07 | 1922-04-08 | 1922-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-10-07 | 1926-04-08 | 1926-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-10-07 | 1930-04-08 | 1930-10-08 | $7700.00 | Window Closed / Lapsed |