Patent US2168301A successfully refreshed from Google Patents.
US2168301A
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Method of sizing porous metal bushings
Assignee: Motors Liquidation Co
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Filing: 1937-06-18
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Granted: 1939-08-01
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Expires: 1957-06-18
Abstract
No abstract record available.
Inventors
- 👤 Lemming John Conrad
- 👤 James H Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:38
CPC Classifications
B; B22; B22F; B22F5/00; B22F5/10; B22F5/106; B22F3/00; B22F3/10; B22F3/11; B22F3/1146; B22F2999/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49696
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) | 1942-07-31 | 1943-01-30 | 1943-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-07-31 | 1947-01-30 | 1947-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-07-31 | 1951-01-30 | 1951-08-01 | $7700.00 | Window Closed / Lapsed |