Patent US1441250A successfully refreshed from Google Patents.
US1441250A
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Electromagnetic device for serving rivets to nailing machines
Assignee: AO Smith Corp
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Filing: 1920-07-26
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Granted: 1923-01-09
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Expires: 1940-07-26
Abstract
No abstract record available.
Inventors
- 👤 Smith Reuben Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:33
CPC Classifications
B; B21; B21J; B21J15/00; B21J15/10; B21J15/30; B21J15/32; B21C; B21C47/00; B21C47/34; B21C47/3466; B21C47/3483; B23; B23P; B23P19/00; B23P19/001; B27; B27F; B27F7/00; B27F7/02; B27F7/13; B65; B65G; B65G54/00; B65G54/02
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) | 1926-01-08 | 1926-07-10 | 1927-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-01-08 | 1930-07-10 | 1931-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-01-08 | 1934-07-10 | 1935-01-09 | $7700.00 | Window Closed / Lapsed |