Patent US5019980A successfully refreshed from Google Patents.
Patent US1898100A successfully refreshed from Google Patents.
US1898100A
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Permanent connecting unit and method of forming same
Assignee: O&S Bearing Co
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Filing: 1929-12-09
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Granted: 1933-02-21
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Expires: 1949-12-09
Abstract
No abstract record available.
Inventors
- 👤 Skillman Newton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:22
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/84; B60; B60G; B60G2204/00; B60G2204/40; B60G2204/416; B60G2204/422; B60G2206/00; B60G2206/01; B60G2206/10; B60G2206/11; B60G2206/80; B60G2206/81; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49648; Y10T29/49655; Y10T29/49657; Y10T29/49661; Y10T29/49702; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32032; Y10T403/32606; Y10T403/32631; Y10T403/32737; Y10T403/32771; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2153; Y10T74/2162
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) | 1936-02-21 | 1936-08-22 | 1937-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-02-21 | 1940-08-22 | 1941-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-02-21 | 1944-08-22 | 1945-02-21 | $7700.00 | Window Closed / Lapsed |