Patent US3327746A successfully refreshed from Google Patents.
US3327746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chip cutting blade
Assignee: Individual
•
Filing: 1965-01-12
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Granted: 1967-06-27
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Expires: 1985-01-12
Abstract
No abstract record available.
Inventors
- 👤 Budd W Andrus
- 👤 Gustave A Hallstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:47
CPC Classifications
B; B27; B27L; B27L11/00; B27L11/005; Y; Y10; Y10T; Y10T408/00; Y10T408/39
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A CHIP CUTTING BLADE FOR CHIPPING WOOD COMPRISING: AN ELONGATE MEMBER IN SUBSTANTIALLY THE SHAPE OF A SECTOR OF A HOLLOW CYLINDER, HAVING AN EXTERIOR CONVEX SURFACE AND AN INTERIOR CONCAVE SURFACE, SAID SURFACES BEING BOUNDED BY SIDE SURFACES DEFINING THE EDGE OF SAID SECTOR; A TAPERED PORTION FROM THE CONVEX EXTERIOR SURFACE PROXIMATE AN END OF THE SECTOR TO THE CONCAVE INTERIOR SURFACE AT SAID END OF THE SECTOR, SAID TAPER BEING RADIALLY DISPOSED AND DEFINING A CUTTING EDGE, AND A FLAT PORTION TAPERING FROM THE EXTERIOR SURFACE TO THE INTERIOR SURFACE, SAID FLAT PORTION BEING SUBSTANTIALLY PARALLEL TO A TANGENT TO THE SURFACES AND DEFINING AN ADDITIONAL CUTTING EDGE ALONG THE INTERIOR SURFACE.
Claim 2
Dependent Claim
115 words
A CHIP CUTTING BLADE FOR CHIPPING WOOD COMPRISING: AN ELONGATE MEMBER IN SUBSTANTIALLY THE SHAPE OF A SECTOR OF A HOLLOW CYLINDER, HAVING AN EXTERIOR CONVEX SURFACE AND AN INTERIOR CONCAVE SURFACE, SAID SURFACES BEING BOUNDED BY SIDE SURFACES DEFINING THE EDGE OF SAID SECTOR; A TAPERED PORTION FROM THE CONVEX EXTERIOR SURFACE PROXIMATE AN END OF THE SECTOR TO THE CONCAVE INTERIOR SURFACE AT SAID END OF THE SECTOR, SAID TAPER BEING RADIALLY DISPOSED AND DEFINING A CUTTING EDGE, AND A FLAT PORTION TAPERING FROM THE EXTERIOR SURFACE TO THE INTERIOR SURFACE, SAID FLAT PORTION BEING SUBSTANTIALLY PARALLEL TO A TANGENT TO THE SURFACES AND DEFINING AN ADDITIONAL CUTTING EDGE ALONG THE INTERIOR SURFACE.
References Cited (Backward Citations)
US3040789A
Cited
US2922448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |