Patent US2437190A successfully refreshed from Google Patents.
US2437190A
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Manually controlled tracer
Assignee: HEXAGON TOOL AND ENGINEERING C
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Filing: 1944-07-26
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Granted: 1948-03-02
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Expires: 1964-07-26
Abstract
No abstract record available.
Inventors
- 👤 Harold W Gale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:05
CPC Classifications
B; B25; B25H; B25H7/00; B25H7/04; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/303416; Y10T409/303472
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1788894A
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US1952231A
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US1966618A
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US1977015A
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US2007899A
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US2087049A
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US2076865A
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US2101712A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-02 | 1951-09-01 | 1952-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-02 | 1955-09-01 | 1956-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-02 | 1959-09-01 | 1960-03-02 | $7700.00 | Window Closed / Lapsed |