US3079250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Additives for molten metals
Assignee: American Metallurgical Products Co
•
Filing: 1961-05-05
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Granted: 1963-02-26
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Expires: 1981-05-05
Abstract
No abstract record available.
Inventors
- 👤 Wilbur T Bolkcom
- 👤 William E Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:23
CPC Classifications
C; C21; C21C; C21C7/00; C21C7/0056; C21C7/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A METHOD OF TREATING STEEL TO IMPROVE FLUIDITY AND REDUCE INCLUSIONS COMPRISING THE STEPS OF POURING THE METAL WHILE MOLTEN INTO A RECEPTABLE, AND ADDING TO THE
Claim 2
Independent Claim
27 words
A METHOD OF TREATING STEEL TO IMPROVE FLUIDITY AND REDUCE INCLUSIONS COMPRISING THE STEPS OF POURING THE METAL WHILE MOLTEN INTO A RECEPTABLE, AND ADDING TO THE
References Cited (Backward Citations)
US2540366A
Cited
GB716856A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |