Patent US3019128A successfully refreshed from Google Patents.
US3019128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated carbonaceous articles
Assignee: Union Carbide Corp
•
Filing: 1957-09-17
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Granted: 1962-01-30
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Expires: 1977-09-17
Abstract
No abstract record available.
Inventors
- 👤 William D Smiley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:23
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/52; C04B41/80; C04B41/81; C04B41/89; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31536
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
AN ARTICLE PROTECTED AGAINST SEVERE OXIDATION AND EROSION WHICH COMPRISES A CARBONACEOUS CORE; THE CARBIDE OF A REFRACTORY METAL IN SUBSTANTIALLY ALL THE PORES OF THE EXPOSED SURFACE OF SAID CORE, SAID METAL CARBIDE SUBSTANTIALLY COMPLETELY COVERING THE EXPOSED SURFACE OF SAID CORE; A COATING OF SAID REFRACTORY METAL COMPLETELY COVERING SAID METAL CARBIDE AND ANY OF THE SURFACE OF SAID CORE WHICH IS EXPOSED THROUGH SAID CARBIDE, SAID METAL BEING FREE OF ALL METAL CARBIDE ON THE SURFACE THEREOF; AND A GLASS-LIKE COATING OF A REFRACTORY OXIDE OF SAID REFRACTORY METAL TOTALLY COVERING SAID METAL; EACH OF SAID COATING LAYERS BEING BONDED TO THE MATERIALS IMMEDIATELY ADJACENT
Claim 2
Dependent Claim
108 words
AN ARTICLE PROTECTED AGAINST SEVERE OXIDATION AND EROSION WHICH COMPRISES A CARBONACEOUS CORE; THE CARBIDE OF A REFRACTORY METAL IN SUBSTANTIALLY ALL THE PORES OF THE EXPOSED SURFACE OF SAID CORE, SAID METAL CARBIDE SUBSTANTIALLY COMPLETELY COVERING THE EXPOSED SURFACE OF SAID CORE; A COATING OF SAID REFRACTORY METAL COMPLETELY COVERING SAID METAL CARBIDE AND ANY OF THE SURFACE OF SAID CORE WHICH IS EXPOSED THROUGH SAID CARBIDE, SAID METAL BEING FREE OF ALL METAL CARBIDE ON THE SURFACE THEREOF; AND A GLASS-LIKE COATING OF A REFRACTORY OXIDE OF SAID REFRACTORY METAL TOTALLY COVERING SAID METAL; EACH OF SAID COATING LAYERS BEING BONDED TO THE MATERIALS IMMEDIATELY ADJACENT
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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) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |