Patent US3133339A successfully refreshed from Google Patents.
US3133339A
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Tool having improved cutting qualities
Assignee: Weldon Tool Co
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Filing: 1961-07-10
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Granted: 1964-05-19
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Expires: 1981-07-10
Abstract
No abstract record available.
Inventors
- 👤 Thomas A Ribich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:39
CPC Classifications
B; B23; B23C; B23C5/00; B23C5/02; B23C5/10; B23C2210/00; B23C2210/08; B23C2210/088; B23C2210/20; B23C2210/202; Y; Y10; Y10T; Y10T407/00; Y10T407/19; Y10T407/1946; Y10T407/1948; Y10T407/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
AN END MILL HAVING AN IMPROVED CUTTING ACTION INCLUDING IN COMBINATION A SHANK END PORTION AND A CUTTING END PORTION, SAID CUTTING END PORTION COMPRISING A PLURALITY OF SPACED CUTTING EDGES EXTENDING IN A HELICAL DIRECTION, EACH SAID CUTTING EDGE IN ITS DEVELOPED CONDITION FOLLOWING SUBSTANTIALLY THE PATH OF A REGULAR CURVE DEFINING PEAKS AND VALLEYS, THE DEPTH FROM A PEAK TO A VALLEY BEING SMALL AS COMPARED TO THE PITCH DISTANCE
Claim 2
Dependent Claim
72 words
AN END MILL HAVING AN IMPROVED CUTTING ACTION INCLUDING IN COMBINATION A SHANK END PORTION AND A CUTTING END PORTION, SAID CUTTING END PORTION COMPRISING A PLURALITY OF SPACED CUTTING EDGES EXTENDING IN A HELICAL DIRECTION, EACH SAID CUTTING EDGE IN ITS DEVELOPED CONDITION FOLLOWING SUBSTANTIALLY THE PATH OF A REGULAR CURVE DEFINING PEAKS AND VALLEYS, THE DEPTH FROM A PEAK TO A VALLEY BEING SMALL AS COMPARED TO THE PITCH DISTANCE
References Cited (Backward Citations)
FR1230614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |