US3147547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating refractory metals
Assignee: General Electric Co
•
Filing: 1960-03-10
•
Granted: 1964-09-08
•
Expires: 1980-03-10
Abstract
No abstract record available.
Inventors
- 👤 Herbert P Kuebrich
- 👤 Jr John S Petro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:32
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/22; B23K20/233; B23K35/00; B23K35/001; B23K35/005; C; C25; C25D; C25D5/00; C25D5/34; C25D5/38; Y; Y10; Y10S; Y10S205/00; Y10S205/917; Y10S72/00; Y10S72/70; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/1284; Y10T428/12861; Y10T428/12889; Y10T428/12903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
THE METHOD OF BONDING METAL OF THE GROUP CONSISTING OF MOLYBDENUM, TUNGSTEN, MOLYBDENUM BASED ALLOYS AND TUNGSTEN BASED ALLOYS AND METAL OF THE GROUP CONSISTING OF NICKEL, COPPER, SILVER AND GOLD TO PRODUCE COMPOSITE METAL BODIES WHICH COMPRISES THE STEPS OF COATING A SLAB OF METAL OF THE FIRST-NAMED GROUP WITH A FLASH LAYER OF METAL OF THE GROUP CONSISTING OF COPPER, SILVER AND GOLD BY ELECTRODEPOSITION, HEAT TREATING THE COATED SLAB IN A REDUCING ATMOSPHERE BY RAISING IT TO A TEMPERATURE HIGH ENOUGH TO CAUSE THE METAL OF THE FLASH LAYER TO MELT AND MAINTAINING THE COATED SLAB AT SUCH TEMPERATURE FOR A TIME NOT LESS THAN 30 MINUTES TO FREE THE COATED SLAB FROM GASEOUS MATERIAL AND OXIDES WITH THE FLASH LAYER IN MOLTEN CONDITION AND THEN SOLIDIFYING THE FLASH LAYER BEFORE EXPOSING THE COATED SLAB TO AIR BY LOWERING THE TEM-
Claim 2
Independent Claim
144 words
THE METHOD OF BONDING METAL OF THE GROUP CONSISTING OF MOLYBDENUM, TUNGSTEN, MOLYBDENUM BASED ALLOYS AND TUNGSTEN BASED ALLOYS AND METAL OF THE GROUP CONSISTING OF NICKEL, COPPER, SILVER AND GOLD TO PRODUCE COMPOSITE METAL BODIES WHICH COMPRISES THE STEPS OF COATING A SLAB OF METAL OF THE FIRST-NAMED GROUP WITH A FLASH LAYER OF METAL OF THE GROUP CONSISTING OF COPPER, SILVER AND GOLD BY ELECTRODEPOSITION, HEAT TREATING THE COATED SLAB IN A REDUCING ATMOSPHERE BY RAISING IT TO A TEMPERATURE HIGH ENOUGH TO CAUSE THE METAL OF THE FLASH LAYER TO MELT AND MAINTAINING THE COATED SLAB AT SUCH TEMPERATURE FOR A TIME NOT LESS THAN 30 MINUTES TO FREE THE COATED SLAB FROM GASEOUS MATERIAL AND OXIDES WITH THE FLASH LAYER IN MOLTEN CONDITION AND THEN SOLIDIFYING THE FLASH LAYER BEFORE EXPOSING THE COATED SLAB TO AIR BY LOWERING THE TEM-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |