Patent US3205559A successfully refreshed from Google Patents.
US3205559A
Expired / Lapsed
US
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Rotary cutting tool
Assignee: Individual
•
Filing: 1964-01-27
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Granted: 1965-09-14
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Expires: 1984-01-27
Abstract
No abstract record available.
Inventors
- 👤 Walter J Greenleaf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:17
CPC Classifications
B; B23; B23C; B23C5/00; B23C5/16; B23C5/20; B23C5/22; B23C5/24; B23C5/2472; B23C5/2265; B23C5/2269; B23C5/2462; Y; Y10; Y10T; Y10T407/00; Y10T407/19; Y10T407/1906; Y10T407/1908; Y10T407/1912; Y10T407/192; Y10T407/1922; Y10T407/22; Y10T407/2222; Y10T407/2252; Y10T407/2254
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A ROTARY CUTTING TOOL HAVING A HEAD WITH AXIALLY EXTENDING SLOTS DISTRIBUTED ABOUT THE PERIPHERY OF THE HEAD, A BIT IN EACH SLOT, SAID BIT HAVING AXIALLY SPACED FRONT AND BACK EDGES PARALLEL TO EACH OTHER, WEDGE MEANS CLAMPING THE BIT AGAINST ONE SIDE OF THE SLOT, A CYLINDRICAL COUNTERBORE IN THE HEAD INTERSECTING AND EXTENDING TOWARD THE BOTTOM OF THE SLOT, A SCREW HAVING A HEAD WITH A CYLINDRICAL SURFACE FITTING THE COUNTERBORE AND WITH A CONICAL SURFACE PARALLEL TO AND ENGAGING THE BACK EDGE OF THE BIT.
Claim 2
Dependent Claim
89 words
A ROTARY CUTTING TOOL HAVING A HEAD WITH AXIALLY EXTENDING SLOTS DISTRIBUTED ABOUT THE PERIPHERY OF THE HEAD, A BIT IN EACH SLOT, SAID BIT HAVING AXIALLY SPACED FRONT AND BACK EDGES PARALLEL TO EACH OTHER, WEDGE MEANS CLAMPING THE BIT AGAINST ONE SIDE OF THE SLOT, A CYLINDRICAL COUNTERBORE IN THE HEAD INTERSECTING AND EXTENDING TOWARD THE BOTTOM OF THE SLOT, A SCREW HAVING A HEAD WITH A CYLINDRICAL SURFACE FITTING THE COUNTERBORE AND WITH A CONICAL SURFACE PARALLEL TO AND ENGAGING THE BACK EDGE OF THE BIT.
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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |