US3305666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and apparatus for treating conductive surfaces
Assignee: Individual
•
Filing: 1963-08-28
•
Granted: 1967-02-21
•
Expires: 1983-08-28
Abstract
No abstract record available.
Inventors
- 👤 Zaromb Solomon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:44
CPC Classifications
B; B23; B23H; B23H9/00; B23H9/008; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204; Y10T29/49224
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
APPARATUS FOR PROVIDING A NONCONDUCTIVE PATTERN IN A CONDUCTIVE COATING, SAID APPARATUS COMPRISING: AT LEAST TWO METALLIC BLADES, A DIELECTRIC BODY, EACH OF SAID BLADES BEING EMBEDDED IN SAID BODY AND INCLUDING A KNIFE EDGE EXPOSED FROM ONE SIDE OF SAID DIELECTRIC BODY IN THE FORM OF AT LEAST PART OF SAID PATTERN, AND MEANS FOR APPLYING A SURGE OF ELECTRICAL CURRENT BETWEEN SAID COATING AND SAID KNIFE EDGES, SAID SURGE OF CURRENT BEING CONFINED BY SAID DIELECTRIC BODY TO A NARROW AREA OF SAID COATING DIRECTLY FACING SAID KNIFE EDGES AND BEING SUFFICIENT TO EFFECT AT LEAST PARTIAL DESTRUCTION OF PART OF SAID COATING IN SAID NARROW AREA.
Claim 2
Dependent Claim
109 words
APPARATUS FOR PROVIDING A NONCONDUCTIVE PATTERN IN A CONDUCTIVE COATING, SAID APPARATUS COMPRISING: AT LEAST TWO METALLIC BLADES, A DIELECTRIC BODY, EACH OF SAID BLADES BEING EMBEDDED IN SAID BODY AND INCLUDING A KNIFE EDGE EXPOSED FROM ONE SIDE OF SAID DIELECTRIC BODY IN THE FORM OF AT LEAST PART OF SAID PATTERN, AND MEANS FOR APPLYING A SURGE OF ELECTRICAL CURRENT BETWEEN SAID COATING AND SAID KNIFE EDGES, SAID SURGE OF CURRENT BEING CONFINED BY SAID DIELECTRIC BODY TO A NARROW AREA OF SAID COATING DIRECTLY FACING SAID KNIFE EDGES AND BEING SUFFICIENT TO EFFECT AT LEAST PARTIAL DESTRUCTION OF PART OF SAID COATING IN SAID NARROW AREA.
References Cited (Backward Citations)
US1493014A
Cited
US1651074A
Cited
FR31041E
Cited
US1864592A
Cited
US2587239A
Cited
US2716180A
Cited
US2680184A
Cited
FR1089425A
Cited
US3017486A
Cited
US3140379A
Cited
US3119919A
Cited
US3161752A
Cited
US3183339A
Cited
US3214563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |