US2845366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating articles with metal
Assignee: CHICAGO METALLIZING Co IN
•
Filing: 1956-07-16
•
Granted: 1958-07-29
•
Expires: 1976-07-16
Abstract
No abstract record available.
Inventors
- 👤 Albert W Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:49
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/04; C23C4/06; C23C4/08; C23C4/12; C23C4/14; C23C4/16; C23C4/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
THE METHOD OF COATING A FERROUS METAL OBJECT WITH ALUMINUM, WHICH METHOD COMPRISES THE STEPS OF CLEANING AND ROUGHENING THE SURFACE TO BE COATED, SPRAYING A COATING OF LIQUIFIED ALUMINUM ON SAID SURFACE, DISPLACING AIR FROM CONTACT WITH SAID COATED SURFACE AND COVERING THE SAME WITH AN OXYGEN-FREE INERT GAS, AND WHILE MAINTAINING SAID COVERING OF INERT GAS, HEATING THE OBJECT. TO A TEMPERATURE ABOVE THE MELTING POINT OF ALUMINUM TO FUSE SAID ALUMINUM COATING INTO A SUBSTANTIALLY IMPERVIOUS LAYER SECURELY BONDED TO THE SURFACE OF SAID OBJECT.
Claim 2
Independent Claim
88 words
THE METHOD OF COATING A FERROUS METAL OBJECT WITH ALUMINUM, WHICH METHOD COMPRISES THE STEPS OF CLEANING AND ROUGHENING THE SURFACE TO BE COATED, SPRAYING A COATING OF LIQUIFIED ALUMINUM ON SAID SURFACE, DISPLACING AIR FROM CONTACT WITH SAID COATED SURFACE AND COVERING THE SAME WITH AN OXYGEN-FREE INERT GAS, AND WHILE MAINTAINING SAID COVERING OF INERT GAS, HEATING THE OBJECT. TO A TEMPERATURE ABOVE THE MELTING POINT OF ALUMINUM TO FUSE SAID ALUMINUM COATING INTO A SUBSTANTIALLY IMPERVIOUS LAYER SECURELY BONDED TO THE SURFACE OF SAID OBJECT.
References Cited (Backward Citations)
US1121308A
Cited
US1914774A
Cited
US2414923A
Cited
US2423857A
Cited
US2490543A
Cited
US2683436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |