Patent US3147645A successfully refreshed from Google Patents.
US3147645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boring tool
Assignee: Individual
•
Filing: 1961-11-06
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Granted: 1964-09-08
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Expires: 1981-11-06
Abstract
No abstract record available.
Inventors
- 👤 Don T Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:40
CPC Classifications
B; B23; B23B; B23B27/00; B23B27/007; Y; Y10; Y10T; Y10T408/00; Y10T408/89
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A BORING TOOL COMPRISING A BAR OF HARD METAL INCLUDING ONE END CONSTITUTING A SHANK PORTION ADAPTED TO BE SECURED IN A TOOL HOLDING MEANS OF A MACHINE TOOL AND AN ELONGATED TOOL BIT PORTION FORMED INTEGRALLY WITH SAID SHANK PORTION AND CONSTITUTING THE DISTAL END OF SAID TOOL; SAID TOOL BIT PORTION BEING OF MODIFIED CIRCULAR SECTORAL CONFIGURATION IN CROSS SECTION AND HAVING THE CIRCULAR PORTION OF THE SURFACE THEREOF GRADUALLY UNIFORMLY INCREASING IN ITS RADIAL DIMENSION FROM SAID SHANK PORTION TO THE DISTAL END OF SAID TOOL BIT PORTION; SAID SECTORAL CONFIGURATION BEING DEFINED BY A NOTCH EXTENDING LONGITUDINALLY OF SAID TOOL BIT PORTION AND DEFINED BY INTERSECTING FLAT FACES ONE FACE OF SAID NOTCH BEING OF GREATER WIDTH THAN THE RADIAL DIMENSION OF SAID TOOL BIT PORTION AT SAID DISTAL END THEREOF.
Claim 2
Dependent Claim
135 words
A BORING TOOL COMPRISING A BAR OF HARD METAL INCLUDING ONE END CONSTITUTING A SHANK PORTION ADAPTED TO BE SECURED IN A TOOL HOLDING MEANS OF A MACHINE TOOL AND AN ELONGATED TOOL BIT PORTION FORMED INTEGRALLY WITH SAID SHANK PORTION AND CONSTITUTING THE DISTAL END OF SAID TOOL; SAID TOOL BIT PORTION BEING OF MODIFIED CIRCULAR SECTORAL CONFIGURATION IN CROSS SECTION AND HAVING THE CIRCULAR PORTION OF THE SURFACE THEREOF GRADUALLY UNIFORMLY INCREASING IN ITS RADIAL DIMENSION FROM SAID SHANK PORTION TO THE DISTAL END OF SAID TOOL BIT PORTION; SAID SECTORAL CONFIGURATION BEING DEFINED BY A NOTCH EXTENDING LONGITUDINALLY OF SAID TOOL BIT PORTION AND DEFINED BY INTERSECTING FLAT FACES ONE FACE OF SAID NOTCH BEING OF GREATER WIDTH THAN THE RADIAL DIMENSION OF SAID TOOL BIT PORTION AT SAID DISTAL END THEREOF.
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) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |