Patent US2437822A successfully refreshed from Google Patents.
US2437822A
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US
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Combined drill and deburring tool
Assignee: Curtiss Wright Corp
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Filing: 1944-10-30
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Granted: 1948-03-16
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Expires: 1964-10-30
Abstract
No abstract record available.
Inventors
- 👤 Jones Dedger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:05
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/10; B23B51/101; Y; Y10; Y10T; Y10T408/00; Y10T408/34; Y10T408/352; Y10T408/89; Y10T408/905; Y10T408/906; Y10T82/00; Y10T82/12; Y10T82/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US730670A
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US1711012A
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US2314084A
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US2373474A
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US2364293A
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US2394612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-16 | 1951-09-15 | 1952-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-16 | 1955-09-15 | 1956-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-16 | 1959-09-15 | 1960-03-16 | $7700.00 | Window Closed / Lapsed |