US3142138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounted abrasive stone and method of making same
Assignee: Individual
•
Filing: 1963-05-08
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Granted: 1964-07-28
•
Expires: 1983-05-08
Abstract
No abstract record available.
Inventors
- 👤 Wallace R Kean
- 👤 Dale L Timberlake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:17
CPC Classifications
B; B24; B24D; B24D7/00; B24D7/16; B24D18/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
AN ABRASIVE DRILL, SAID DRILL COMPRISING AN ABRASIVE HEAD AND A SHAFT, THE ABRASIVE HEAD HAVING A SHAFT HOLE, A FIRST BONDING AGENT BONDING THE ABRASIVE HEAD TO THE SHAFT, SAID SHAFT BEING IN SAID SHAFT HOLE, A SECOND BONDING AGENT SUBSTANTIALLY COVERING THE FIRST BONDING AGENT AND ALSO BONDING THE ABRASIVE HEAD TO THE SHAFT AND SAID SECOND BONDING AGENT BEING DISTRIBUTED ON SAID DRILL IN A MANNER WHICH INSURES A HIGH DEGREE OF ROTATIONAL BALANCE FOR SAID DRILL.
Claim 2
Dependent Claim
80 words
AN ABRASIVE DRILL, SAID DRILL COMPRISING AN ABRASIVE HEAD AND A SHAFT, THE ABRASIVE HEAD HAVING A SHAFT HOLE, A FIRST BONDING AGENT BONDING THE ABRASIVE HEAD TO THE SHAFT, SAID SHAFT BEING IN SAID SHAFT HOLE, A SECOND BONDING AGENT SUBSTANTIALLY COVERING THE FIRST BONDING AGENT AND ALSO BONDING THE ABRASIVE HEAD TO THE SHAFT AND SAID SECOND BONDING AGENT BEING DISTRIBUTED ON SAID DRILL IN A MANNER WHICH INSURES A HIGH DEGREE OF ROTATIONAL BALANCE FOR SAID DRILL.
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) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |