US2442013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed control for motive devices
Assignee: National Cylinder Gas Co
•
Filing: 1942-03-07
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Granted: 1948-05-25
•
Expires: 1962-03-07
Abstract
No abstract record available.
Inventors
- 👤 Mott Chester
- 👤 Alfred F Chouinard
- 👤 Robert L Harding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:32
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/002; B23K7/004; Y; Y10; Y10S; Y10S388/00; Y10S388/907; Y10S388/913
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1353815A
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US1358637A
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US1485865A
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US1774865A
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GB294497A
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US1944756A
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US2172313A
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US2177276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-25 | 1951-11-24 | 1952-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-25 | 1955-11-24 | 1956-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-25 | 1959-11-24 | 1960-05-25 | $7700.00 | Window Closed / Lapsed |