Patent US2580438A successfully refreshed from Google Patents.
US2580438A
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Bearing assembly
Assignee: BALDWIN Co
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Filing: 1949-01-03
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Granted: 1952-01-01
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Expires: 1969-01-03
Abstract
No abstract record available.
Inventors
- 👤 Armand F Knoblaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:31
CPC Classifications
G; G10; G10C; G10C3/00; G10C3/16; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/911; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49696
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |