US3245099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Root diameter reamer tap
Assignee: Zagar Inc
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Filing: 1963-12-26
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Granted: 1966-04-12
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Expires: 1983-12-26
Abstract
No abstract record available.
Inventors
- 👤 Frank G Zagar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:17
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/04; B23; B23G; B23G5/00; B23G5/02; B23G5/06; B23G5/20; B23G2200/00; B23G2200/14; B23G2200/143; B23G2200/146; B23G2200/147; B23G2200/148; Y; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/904; Y10T408/9046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A REAMER TAP HAVING A FLUTED CONICAL NON-TAPPING REAMING PORTION EXTENDING BACKWARDLY FROM ITS TIP, AN AT LEAST PARTIALLY FLUTED TAPPING PORTION EXTENDING BACKWARDLY AND PROGRESSIVELY RADIALLY OUTWARDLY FROM SAID CONICAL REAMING PORTION UNTIL THE MAJOR DIAMETER OF THE WORKING PART OF THE TOOL IS REACHED AND THENCE EXTENDING BACKWARDLY AT A CONSTANT OUTSIDE DIAMETER, SAID TAPPING PORTION BEING FORMED WITH TEETH HAVING ROOTS WHICH ARE FLAT IN LONGITUDINAL CROSS-SECTION AND WHICH THEREFORE MOVE IN THE SURFACE OF AN IMAGINARY CYLINDEDR, THE ROOT DIAMETER OF SAID TAPPING PORTION BEING EQUAL TO THE MAJOR DIAMETER OF THE CONICAL NON-TAPPING POSITION.
Claim 2
Dependent Claim
99 words
A REAMER TAP HAVING A FLUTED CONICAL NON-TAPPING REAMING PORTION EXTENDING BACKWARDLY FROM ITS TIP, AN AT LEAST PARTIALLY FLUTED TAPPING PORTION EXTENDING BACKWARDLY AND PROGRESSIVELY RADIALLY OUTWARDLY FROM SAID CONICAL REAMING PORTION UNTIL THE MAJOR DIAMETER OF THE WORKING PART OF THE TOOL IS REACHED AND THENCE EXTENDING BACKWARDLY AT A CONSTANT OUTSIDE DIAMETER, SAID TAPPING PORTION BEING FORMED WITH TEETH HAVING ROOTS WHICH ARE FLAT IN LONGITUDINAL CROSS-SECTION AND WHICH THEREFORE MOVE IN THE SURFACE OF AN IMAGINARY CYLINDEDR, THE ROOT DIAMETER OF SAID TAPPING PORTION BEING EQUAL TO THE MAJOR DIAMETER OF THE CONICAL NON-TAPPING POSITION.
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |