US2997405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for and methods of contacting oxidizable materials
Assignee: 3M Co
•
Filing: 1958-06-05
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Granted: 1961-08-22
•
Expires: 1978-06-05
Abstract
No abstract record available.
Inventors
- 👤 William V Huck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:29
CPC Classifications
H; H01; H01B; H01B1/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49988; Y10T29/49989; Y10T407/00; Y10T407/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
65 words
THE METHOD OF ELECTRICALLY CONTACTING A MEMBER OF MATERIAL READILY OXIDIZABLE IN AIR COMPRISING APPLYING IN A MOLTEN STATE TO A CUT-OFF TOOL A MOLTEN METAL RELATIVELY STABLE IN AIR ALLOYABLE WITH THE MATERIAL OF SAID MEMBER AND SOLIDIFIABLE AT ROOM TEMPERATURES, CUTTING OFF A PORTION OF SAID MEMBER WHILE CONTINUING THE APPLICATION OF SAID MOLTEN METAL TO SAID CUT-OFF TOOL TO THEREBY APPLY SAID
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US1923790A
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US1984624A
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US2104237A
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US2413016A
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US2815562A
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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) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |