Patent JPS5690903A successfully refreshed from Google Patents.
US2539723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube deburring machine
Assignee: JAMES W BELL
•
Filing: 1945-04-11
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Granted: 1951-01-30
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Expires: 1965-04-11
Abstract
No abstract record available.
Inventors
- 👤 Robert E Branch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:34
CPC Classifications
B; B23; B23B; B23B5/00; B23B5/16; B23Q; B23Q7/00; B23Q7/001; Y; Y10; Y10S; Y10S470/00; Y10S470/901; Y10T; Y10T409/00; Y10T409/30; Y10T409/306664; Y10T409/306776; Y10T82/00; Y10T82/25; Y10T82/2514; Y10T82/2516
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1538659A
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US1637176A
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US1657101A
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US1981260A
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US2082999A
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US2276771A
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US2235083A
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US2388355A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-29 | 1954-07-31 | 1955-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-29 | 1958-07-31 | 1959-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-29 | 1962-07-31 | 1963-01-30 | $7700.00 | Window Closed / Lapsed |