US2040957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metalworking process
Assignee: Motors Liquidation Co
•
Filing: 1933-04-28
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Granted: 1936-05-19
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Expires: 1953-04-28
Abstract
No abstract record available.
Inventors
- 👤 Wilbur E Sanders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:43
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/28; B21K1/30; B21J; B21J1/00; B21J1/02; B21J1/025; B21J9/00; B21J9/02; B21J9/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49462; Y10T29/49467; Y10T29/49478
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) | 1939-05-19 | 1939-11-18 | 1940-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-05-19 | 1943-11-18 | 1944-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-05-19 | 1947-11-18 | 1948-05-19 | $7700.00 | Window Closed / Lapsed |