US3274861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expandable rotary boring tool
Assignee: Micromatic Hone Corp
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Filing: 1964-10-08
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Granted: 1966-09-27
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Expires: 1984-10-08
Abstract
No abstract record available.
Inventors
- 👤 Albin S Czubak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:50
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; Y10T408/8595
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN AN EXPANDABLE BORING TOOL INCLUDING A DRIVE SPINDLE ROTATABLE ABOUT A LONGITUDINAL AXIS AND RECIPROCABLE THEREALONG, AT LEAST ONE BORING TOOL ASSEMBLY PIVOTALLY CARRIED BY SAID SPINDLE FOR MOVEMENT ABOUT AN AXIS NORMAL TO SAID LONGITUDINAL AXIS AND DISPOSED ADJACENT PERIPHERY THEREOF, MEANS FOR PIVOTALLY ADJUSTING SAID BORING TOOL ASSEMBLY RADIALLY OF SAID SPINDLE INCLUDING A ROD MOVABLE AXIALLY WITHIN SAID SPINDLE AND HAVING A LONGITUDINALLY TAPERED SURFACE OPERATIVELY ENGAGING SAID TOOL ASSEMBLY,
Claim 2
Dependent Claim
74 words
IN AN EXPANDABLE BORING TOOL INCLUDING A DRIVE SPINDLE ROTATABLE ABOUT A LONGITUDINAL AXIS AND RECIPROCABLE THEREALONG, AT LEAST ONE BORING TOOL ASSEMBLY PIVOTALLY CARRIED BY SAID SPINDLE FOR MOVEMENT ABOUT AN AXIS NORMAL TO SAID LONGITUDINAL AXIS AND DISPOSED ADJACENT PERIPHERY THEREOF, MEANS FOR PIVOTALLY ADJUSTING SAID BORING TOOL ASSEMBLY RADIALLY OF SAID SPINDLE INCLUDING A ROD MOVABLE AXIALLY WITHIN SAID SPINDLE AND HAVING A LONGITUDINALLY TAPERED SURFACE OPERATIVELY ENGAGING SAID TOOL ASSEMBLY,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |