Patent US3353526A successfully refreshed from Google Patents.
US3353526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive cutting tools such as saws
Assignee: Boart and Hard Metal Products SA Ltd
•
Filing: 1964-10-12
•
Granted: 1967-11-21
•
Expires: 1984-10-12
Abstract
No abstract record available.
Inventors
- 👤 Richard C Daem
- 👤 Nigel W Gray
- 👤 Young Brian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:52
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/46; E21B10/48; B; B24; B24D; B24D5/00; B24D5/12; B28; B28D; B28D1/00; B28D1/02; B28D1/04; B28D1/041; B28D1/12; C; C21; C21B; C21B13/00; C21B13/08; Y; Y02; Y02P; Y02P10/00; Y02P10/10; Y02P10/134
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
AN ABRASIVE CUTTING TOOL IN WHICH THE CUTTING EDGE COMPRISES A CORE OF NON-ABRASIVE MATERIAL EXTENDING IN ZIG-ZAG FASHION ACROSS THE MEANS CENTERLINE OF THE MATERIAL OF THE CORE WITH AT LEAST ALTERNATE LIMBS OF THE ZIGZAG CROSSING SAID CENTERLINE, AND A SINGLE LAYER OF ABRASIVE GRAINS ADHERING TO EACH SIDE OF THE CORE, THAT PART OF THE CORE WHICH IS AT THE CUTTING EDGE BEING EXPOSED.
Claim 2
Dependent Claim
67 words
AN ABRASIVE CUTTING TOOL IN WHICH THE CUTTING EDGE COMPRISES A CORE OF NON-ABRASIVE MATERIAL EXTENDING IN ZIG-ZAG FASHION ACROSS THE MEANS CENTERLINE OF THE MATERIAL OF THE CORE WITH AT LEAST ALTERNATE LIMBS OF THE ZIGZAG CROSSING SAID CENTERLINE, AND A SINGLE LAYER OF ABRASIVE GRAINS ADHERING TO EACH SIDE OF THE CORE, THAT PART OF THE CORE WHICH IS AT THE CUTTING EDGE BEING EXPOSED.
References Cited (Backward Citations)
US110162A
Cited
US693306A
Cited
US824946A
Cited
US1435514A
Cited
US1878414A
Cited
US2811960A
Cited
US3199254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |