US1848083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming valve tappets
Assignee: Motors Liquidation Co
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Filing: 1929-08-07
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Granted: 1932-03-01
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Expires: 1949-08-07
Abstract
No abstract record available.
Inventors
- 👤 Charles E Wetherald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:29
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/22; B21K; B21K1/00; B21K1/76; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49298; Y10T29/49307; Y10T29/49311; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49934; Y10T29/49936
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) | 1935-03-01 | 1935-08-31 | 1936-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-03-01 | 1939-08-31 | 1940-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-03-01 | 1943-08-31 | 1944-03-01 | $7700.00 | Window Closed / Lapsed |