Patent US2770871A successfully refreshed from Google Patents.
US2770871A
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Filler metal piece for the welding of spheroidal graphite cast iron
Assignee: Pont a Mousson SA
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Filing: 1953-03-09
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Granted: 1956-11-20
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Expires: 1973-03-09
Abstract
No abstract record available.
Inventors
- 👤 Demalander Roger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:16
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3053; B23K35/306; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12639; Y10T428/12646; Y10T428/12653; Y10T428/12771; Y10T428/12861; Y10T428/12951; Y10T428/12958
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
76 words
A UNIT COMPRISING TWO CAST IRON MEBERS UNITED BY WELDING, THE CAST IRON OF SAID MEMBERS COMPRISING SPHEROIDAL PARTICLES OF GRAPHITE AND THE WELD DEPOSIT COMPRISING CAST IRON IN WHICH THE CARBON IS GROUPED IN THE FORM OF UNIFORMLY DISTRIBUTED SPHEROIDAL PARTICLES OF GRAPHITE, THE MICROGRAPHS OF THE CAST IRON OF SAID DEPOSIT BEING IDENTICAL TO THOSE OF SAID MEMBERS SAID CAST IRON MEMBERS, HAVING THE FOLLOWING APPROXIMATE COMPOSITION BY WEIGHT, IN ADDITION TO THE IRON:
References Cited (Backward Citations)
GB298781A
Cited
US2054770A
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US2229405A
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US2288869A
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US2488513A
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US2488511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |