Patent US3067586A successfully refreshed from Google Patents.
Patent US3202552A successfully refreshed from Google Patents.
US3202552A
Expired / Lapsed
US
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Combined heat treatment and leaching operations for the production of hollow articles
Assignee: Huntington Alloys Corp
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Filing: 1962-06-12
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Granted: 1965-08-24
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Expires: 1982-06-12
Abstract
No abstract record available.
Inventors
- 👤 Thexton John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:16
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/051; C22C19/056; C22F; C22F1/00; C22F1/10; C23; C23F; C23F1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A PROCESS OF LEACHING CORED FERROUS METAL FILLER FROM FILLED PASSAGES IN A HOT WORKED METAL OBJECT MADE OF AN ALLOY CONTAINING BY WEIGHT ABOUT 13.5% TO ABOUT 15.75% CHROMIUM ABOUT 10% TO ABOUT 55% COBALT, ABOUT 4% TO ABOUT 9.5% ALUMINUM, ABOUT 0.5% TO ABOUT 2% TITANIUM WITH THE TOTAL OF SAID ALUMINUM PLUS SAID TITANIUM NOT EXCEEDING ABOUT 10.5%, ABOUT 0.05% TO ABOUT 0.5% CARBON, UP TO ABOUT 10% MOLYBDENUM, UP TO ABOUT 10% IRON, UP TO ABOUT 0.02% BORON, UP TO ABOUT 0.5% ZIRCONIUM, UPTO ABOUT 5% TUNGSTEN,UP TO ABOUT 1% MANGANESE, UP TO ABOUT 2.5% SILICON, UP TO ABOUT 2% NIOBIUM, UP TO ABOUT 2% TANALUM AND UP TO ABOUT 3% BERRYLIUM
Claim 2
Dependent Claim
116 words
A PROCESS OF LEACHING CORED FERROUS METAL FILLER FROM FILLED PASSAGES IN A HOT WORKED METAL OBJECT MADE OF AN ALLOY CONTAINING BY WEIGHT ABOUT 13.5% TO ABOUT 15.75% CHROMIUM ABOUT 10% TO ABOUT 55% COBALT, ABOUT 4% TO ABOUT 9.5% ALUMINUM, ABOUT 0.5% TO ABOUT 2% TITANIUM WITH THE TOTAL OF SAID ALUMINUM PLUS SAID TITANIUM NOT EXCEEDING ABOUT 10.5%, ABOUT 0.05% TO ABOUT 0.5% CARBON, UP TO ABOUT 10% MOLYBDENUM, UP TO ABOUT 10% IRON, UP TO ABOUT 0.02% BORON, UP TO ABOUT 0.5% ZIRCONIUM, UPTO ABOUT 5% TUNGSTEN,UP TO ABOUT 1% MANGANESE, UP TO ABOUT 2.5% SILICON, UP TO ABOUT 2% NIOBIUM, UP TO ABOUT 2% TANALUM AND UP TO ABOUT 3% BERRYLIUM
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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |