US3606561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swivel head boring bar
Assignee: Stewart Warner Corp
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Filing: 1970-03-12
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Granted: 1971-09-20
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Expires: 1990-03-12
Abstract
Abstract AN AXIALLY MOVABLE BORING BAR CARRIES A PLURALITY OF RADIALLY DIRECTED TOOLS AT LONGITUDINALLY SPACED POSITION WITH ONE OF THE TOOLS BEING ADJUSTABLY POSITIONED ABOUT A PIVOT AXIS PERPENDICULAR TO SHAFT AXIS TO REDUCE THE OVERALL TRAVEL OF THE BORING BAR.
Inventors
- 👤 John D Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:41
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/03; B23B29/034; B23B29/03432; B23B29/03457; Y; Y10; Y10T; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/8588; Y10T408/85884
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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |