Patent US4850334A successfully refreshed from Google Patents.
Patent US3289271A successfully refreshed from Google Patents.
US3289271A
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Indexable cutting inserts
Assignee: Willeys Carbide Tool Co
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Filing: 1964-10-13
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Granted: 1966-12-06
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Expires: 1984-10-13
Abstract
No abstract record available.
Inventors
- 👤 Henry W Stier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:36
CPC Classifications
B; B23; B23B; B23B27/00; B23B27/14; B23B27/141; B23B27/145; Y; Y10; Y10T; Y10T407/00; Y10T407/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
AN INDEXABLE AND REMOVABLE SYMMETRICAL CUTTING INSERT HAVING TWO POLYGONAL PARALLEL PLANE FACES, EACH ONE OF SAID FACES HAVING N PLANE TRAPEZOIDAL SHAPED IDENTICAL SIDES AND N/2 SUBSTANTIALLY EQUAL CUTTING EDGES OF LESS THAN NINETY DEGREES, EACH SAID SIDE FORMING IN CONJUNCTION WITH ONE ADJACENT AND ONE OF SAID PLANE FACES, RESPECTIVELY, A PAIR OF CUTTING TIPS,
Claim 2
Dependent Claim
57 words
AN INDEXABLE AND REMOVABLE SYMMETRICAL CUTTING INSERT HAVING TWO POLYGONAL PARALLEL PLANE FACES, EACH ONE OF SAID FACES HAVING N PLANE TRAPEZOIDAL SHAPED IDENTICAL SIDES AND N/2 SUBSTANTIALLY EQUAL CUTTING EDGES OF LESS THAN NINETY DEGREES, EACH SAID SIDE FORMING IN CONJUNCTION WITH ONE ADJACENT AND ONE OF SAID PLANE FACES, RESPECTIVELY, A PAIR OF CUTTING TIPS,
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |