US2843542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing improved abrading contours
Assignee: Individual
•
Filing: 1956-02-23
•
Granted: 1958-07-15
•
Expires: 1976-02-23
Abstract
No abstract record available.
Inventors
- 👤 George F Callahan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:49
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/32; H01J37/36; B; B23; B23K; B23K15/00; C; C23; C23C; C23C16/00; C23C16/04; C23C16/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A METHOD FOR PRODUCING AN IMPROVED ABRADING CONTOUR ON CUTTIN TOOLS AND WEAR RESISTANT MACHINE PARTS COMPRISING THE STEPS OF HEATING THE ACTUATION AREAS OF THE TOOLS AND PARTS BY MEANS OF A GASEOUS DISCHARGE IN REACTION GAS TO COAT THE ACTUATION AREAS WITH INFRANGIBLE MATERIAL, THE ACTUATION AREA OF EACH TOOL AND PART BEING THE CATHOD ELECTRODE FOR THE GASEOUS DISCHARGE, AND SPUTTERING OFF A PORTION OF THE COATING MATERIAL ON THE ACTUATION AREA BY MEANS OF A GASEOUS DISCHARGE IN AN INERT GAS TO SHAPE THE COATING MATERIEL TO THE DESIRED CONTOUR.
Claim 2
Independent Claim
94 words
A METHOD FOR PRODUCING AN IMPROVED ABRADING CONTOUR ON CUTTIN TOOLS AND WEAR RESISTANT MACHINE PARTS COMPRISING THE STEPS OF HEATING THE ACTUATION AREAS OF THE TOOLS AND PARTS BY MEANS OF A GASEOUS DISCHARGE IN REACTION GAS TO COAT THE ACTUATION AREAS WITH INFRANGIBLE MATERIAL, THE ACTUATION AREA OF EACH TOOL AND PART BEING THE CATHOD ELECTRODE FOR THE GASEOUS DISCHARGE, AND SPUTTERING OFF A PORTION OF THE COATING MATERIAL ON THE ACTUATION AREA BY MEANS OF A GASEOUS DISCHARGE IN AN INERT GAS TO SHAPE THE COATING MATERIEL TO THE DESIRED CONTOUR.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |