US2950526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevated temperature working of metals and alloys
Assignee: Individual
•
Filing: 1957-04-22
•
Granted: 1960-08-30
•
Expires: 1977-04-22
Abstract
No abstract record available.
Inventors
- 👤 William J Buehler
- 👤 Joseph F Nachman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:38
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/28; C23G1/32; C21; C21D; C21D1/00; C21D1/68; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981; Y10T29/49812; Y10T29/4998; Y10T29/49982
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
THE METHOD OF REMOVING ABRASIVE REFRACTORY OXIDES FROM THE SURFACE OF A HIGH ALUMINUM CONTENT IRON BASE ALLOY AND PREVENTING THE FORMATION OF SAID OXIDES ON SAID ALLOY DURING THE WARM WORKING THEREOF AT A TEMPERATURE BELOW THE RECRYSTALLIZATION TEMPERATURE OF THE ALLOY COMPRISING TREATING THE SURFACE OF SAID ALLOY WITH A MOLTEN HALIDE THE NATURE OF WHICH IS SUCH THAT WHEN IN A MOLTEN
Claim 2
Independent Claim
65 words
THE METHOD OF REMOVING ABRASIVE REFRACTORY OXIDES FROM THE SURFACE OF A HIGH ALUMINUM CONTENT IRON BASE ALLOY AND PREVENTING THE FORMATION OF SAID OXIDES ON SAID ALLOY DURING THE WARM WORKING THEREOF AT A TEMPERATURE BELOW THE RECRYSTALLIZATION TEMPERATURE OF THE ALLOY COMPRISING TREATING THE SURFACE OF SAID ALLOY WITH A MOLTEN HALIDE THE NATURE OF WHICH IS SUCH THAT WHEN IN A MOLTEN
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) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |