US2210531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic control system for pipe threading machines and the like
Assignee: Youngstown Sheet and Tube Co
•
Filing: 1940-02-29
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Granted: 1940-08-06
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Expires: 1960-02-29
Abstract
No abstract record available.
Inventors
- 👤 Harold E Engelbaugh
- 👤 Martin S Gettig
- 👤 Clifton R Coburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:44
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/22; B23G1/225; Y; Y10; Y10T; Y10T408/00; Y10T408/16; Y10T408/165; Y10T408/175; Y10T408/52; Y10T408/54
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) | 1943-08-06 | 1944-02-05 | 1944-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-08-06 | 1948-02-05 | 1948-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-08-06 | 1952-02-05 | 1952-08-06 | $7700.00 | Window Closed / Lapsed |