Patent US1795358A successfully refreshed from Google Patents.
US1795358A
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US
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Tool for spinning angular flanges on metal tubes
Assignee: C M Smillie and Co
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Filing: 1929-10-24
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Granted: 1931-03-10
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Expires: 1949-10-24
Abstract
No abstract record available.
Inventors
- 👤 William E Arndt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:21
CPC Classifications
B; B21; B21D; B21D41/00; B21D41/02; B21D41/021; B21D41/023
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) | 1934-03-09 | 1934-09-08 | 1935-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-03-09 | 1938-09-08 | 1939-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-03-09 | 1942-09-08 | 1943-03-10 | $7700.00 | Window Closed / Lapsed |