US2600358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of surfacing metal objects
Assignee: Lunkenheimer Co
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Filing: 1949-03-15
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Granted: 1952-06-10
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Expires: 1969-03-15
Abstract
No abstract record available.
Inventors
- 👤 John W Bolton
- 👤 Sylvester A Weigand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:35
CPC Classifications
C; C23; C23C; C23C24/00; C23C24/02; C23C24/04; B; B22; B22F; B22F9/00; B24; B24C; B24C11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A METHOD OF IMPARTING TO THE SURFACE OF AN OBJECT MADE TO BRONZE ALLOY, A DURABLE, ATTRACTIVE FINISH HAVING A COLOR SUBSTANTIALLY MATCHING THE COLOR OF THE NATIVE BRONZE METAL, WHICH METHOD COMPRISES; SUBJECTING THE SURFACE OF SUCH OBJECT TO A VELOCITY STREAM OF ABRADANT PARTICLES CONSISTING ESSENTIALLY OF AN ALLOY OF COPPER, SILICON, AND ZINC, IN WHICH ABRADANT ALLOY THE COPPERCONSTITUTES THE PREDOMINANT COMPONENT AND THE SILICON AND ZINC ARE SUFFICIENT IN AMOUNT TO IMPART TO THE MINUTE DEPOSITS THEREOF WHICH ARE LEFT UPON THE SURFACE OF THE OBJECT BY THEIR ABRASION A COLOR SUBSTANTIALLY LIKE THAT OF THE NATIVE BRONZE METAL OF THE OBJECT.
Claim 2
Independent Claim
106 words
A METHOD OF IMPARTING TO THE SURFACE OF AN OBJECT MADE TO BRONZE ALLOY, A DURABLE, ATTRACTIVE FINISH HAVING A COLOR SUBSTANTIALLY MATCHING THE COLOR OF THE NATIVE BRONZE METAL, WHICH METHOD COMPRISES; SUBJECTING THE SURFACE OF SUCH OBJECT TO A VELOCITY STREAM OF ABRADANT PARTICLES CONSISTING ESSENTIALLY OF AN ALLOY OF COPPER, SILICON, AND ZINC, IN WHICH ABRADANT ALLOY THE COPPERCONSTITUTES THE PREDOMINANT COMPONENT AND THE SILICON AND ZINC ARE SUFFICIENT IN AMOUNT TO IMPART TO THE MINUTE DEPOSITS THEREOF WHICH ARE LEFT UPON THE SURFACE OF THE OBJECT BY THEIR ABRASION A COLOR SUBSTANTIALLY LIKE THAT OF THE NATIVE BRONZE METAL OF THE OBJECT.
References Cited (Backward Citations)
US1933390A
Cited
US2269219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |