Patent US1402508A successfully refreshed from Google Patents.
US1402508A
Expired / Lapsed
US
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Process of manufacturing metal rings
Assignee: Timken Co
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Filing: 1921-01-26
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Granted: 1922-01-03
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Expires: 1941-01-26
Abstract
No abstract record available.
Inventors
- 👤 Marcus T Lothrop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:48
CPC Classifications
C; C21; C21D; C21D7/00; C21D7/02; C21D7/04; C21D7/08; B; B24; B24B; B24B39/00; B24B39/02; Y; Y10; Y10T; Y10T29/00; Y10T29/47; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/49689
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) | 1925-01-02 | 1925-07-04 | 1926-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-01-02 | 1929-07-04 | 1930-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-01-02 | 1933-07-04 | 1934-01-03 | $7700.00 | Window Closed / Lapsed |