Patent US3252828A successfully refreshed from Google Patents.
US3252828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbide welding rod
Assignee: Eutectic Corp
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Filing: 1963-07-30
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Granted: 1966-05-24
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Expires: 1983-07-30
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Quaas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:03
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/32; B23K35/327; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12486; Y10T428/29; Y10T428/2913; Y10T428/2918; Y10T428/2933; Y10T428/294; Y10T428/298
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A CARBIDE SURFACING ROD COMPRISING A REFRACTORY CARBIDE CORE HAVING A COATING RANGING APPROXIMATELY FROM 2-10% BY WEIGHT OF SAID ROD OF A REFRACTORY METAL COMPATIBLE WITH DEPOSITION OF SAID CARBIDE UPON A PARENT METAL SURFACE AND MELTING AT A TEMPERATURE RANGING APPROXIMATELY FROM 1800-2870*C.
Claim 2
Dependent Claim
45 words
A CARBIDE SURFACING ROD COMPRISING A REFRACTORY CARBIDE CORE HAVING A COATING RANGING APPROXIMATELY FROM 2-10% BY WEIGHT OF SAID ROD OF A REFRACTORY METAL COMPATIBLE WITH DEPOSITION OF SAID CARBIDE UPON A PARENT METAL SURFACE AND MELTING AT A TEMPERATURE RANGING APPROXIMATELY FROM 1800-2870*C.
References Cited (Backward Citations)
US2700091A
Cited
US3023130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |