US3053699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dip coating process
Assignee: AT&T Inc
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Filing: 1960-03-25
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Granted: 1962-09-11
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Expires: 1980-03-25
Abstract
No abstract record available.
Inventors
- 👤 Ralph D Irons
- 👤 Jr Edgar W Weeks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:50
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/52; C04B41/80; C04B41/81; C04B41/89; C23; C23C; C23C2/00; C23C2/02; H; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/3465; H05K3/3468; C04B2111/00; C04B2111/00474; C04B2111/00844; H05K1/00; H05K1/02; H05K1/03; H05K1/0306; H05K1/09; H05K1/092; H05K2203/00; H05K2203/04; H05K2203/044; H05K2203/07; H05K2203/0703; H05K2203/0723; H05K3/22; H05K3/24; H05K3/245
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN A PROCESS OF DIP COATING A BASE METAL HAVING A POROUS SURFACE WITH A DISSIMILAR METAL HAVING A MELTING POINT WHICH IS LOWER THAN THAT OF THE BASE METAL AND WHICH IS ABOVE ABOUT 300* F, THE CAOTING PROCESS INCLUDING THE STEPS OF APPLYING A NONAQUEOUS FLUX TO THE SURFACE OF THE BASE METAL AND IMMEDIATELY THEREAFTER DIPPING THE BASE METAL IN A MOLTEN BATH OF THE COATING METAL; THE IMPROVEMENT WHICH COMPRISES THE ADDITIONAL STEP OF WETTING THE EXPOSED SURFACES OF THE POROUS BASE METAL WITH WATER IMMEDIATELY PRIOR TO THE FLUX-APPLYING STEP, WHEREBY THE WATER WETS THE POROUS SURFACE THROUGHLY AND VAPORIZES DURING THE DIP COATING STEP SO AS TO PROVIDE FOR A MORE UNIFORM AND ADHERENT COATING.
Claim 2
Dependent Claim
121 words
IN A PROCESS OF DIP COATING A BASE METAL HAVING A POROUS SURFACE WITH A DISSIMILAR METAL HAVING A MELTING POINT WHICH IS LOWER THAN THAT OF THE BASE METAL AND WHICH IS ABOVE ABOUT 300* F, THE CAOTING PROCESS INCLUDING THE STEPS OF APPLYING A NONAQUEOUS FLUX TO THE SURFACE OF THE BASE METAL AND IMMEDIATELY THEREAFTER DIPPING THE BASE METAL IN A MOLTEN BATH OF THE COATING METAL; THE IMPROVEMENT WHICH COMPRISES THE ADDITIONAL STEP OF WETTING THE EXPOSED SURFACES OF THE POROUS BASE METAL WITH WATER IMMEDIATELY PRIOR TO THE FLUX-APPLYING STEP, WHEREBY THE WATER WETS THE POROUS SURFACE THROUGHLY AND VAPORIZES DURING THE DIP COATING STEP SO AS TO PROVIDE FOR A MORE UNIFORM AND ADHERENT COATING.
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) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |