US2036758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of and machine for forming headed machine parts
Assignee: Individual
•
Filing: 1932-07-27
•
Granted: 1936-04-07
•
Expires: 1952-07-27
Abstract
No abstract record available.
Inventors
- 👤 David E Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:38
CPC Classifications
B; B21; B21J; B21J9/00; B21J9/02; B21J9/06; B21K; B21K1/00; B21K1/44; B21K1/46; B21K1/50; Y; Y10; Y10S; Y10S29/00; Y10S29/043; Y10T; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/49798
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) | 1939-04-07 | 1939-10-07 | 1940-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-04-07 | 1943-10-07 | 1944-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-04-07 | 1947-10-07 | 1948-04-07 | $7700.00 | Window Closed / Lapsed |