US2977676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ductile iron welding rod and method of welding
Assignee: Chicago Hardware Foundry Co
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Filing: 1958-04-24
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Granted: 1961-04-04
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Expires: 1978-04-24
Abstract
No abstract record available.
Inventors
- 👤 Raymond F Sherwin
- 👤 Sam J Marabella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:35
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3053; B23K35/306
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
THE METHOD OF PRODUCING A DUCTILE WELD DEPOSIT ON A FERROUS ARTICLE WHICH COMPRISES HEATING A WELDING ROD HAVING THE FOLLOWING COMPOSITIONS:
Claim 2
Independent Claim
22 words
THE METHOD OF PRODUCING A DUCTILE WELD DEPOSIT ON A FERROUS ARTICLE WHICH COMPRISES HEATING A WELDING ROD HAVING THE FOLLOWING COMPOSITIONS:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |