US2548048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zinc paste
Assignee: Sherwin Williams Co
•
Filing: 1949-09-21
•
Granted: 1951-04-10
•
Expires: 1969-09-21
Abstract
No abstract record available.
Inventors
- 👤 Olsen Charles Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:40
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/62; C22; C22B; C22B19/00; C22B19/04; C01; C01P; C01P2004/00; C01P2004/80; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
AN IMPROVED ZINC PRODUCT, SUITABLE FOR IMMEDIATE U SE BY INCORPORATION INTO PAINT COMPOSITIONS AND WHICH WILL KEEP IN GOOD CONDITION FOR SEVERAL YEARS WHEN STORED IN HERMETICALLY SEALED CONTAINERS COMPRISING A SMOOTH HOMOGENEOUS PASTE CONSISTING ESSENTIALLY OF FINELY DIVIDED ZINC PARTICLES WHICH ARE COATED WITH A THIN LAYER OF DEPOLYMERIZED RUBBER DISSOLVED IN A HYDROCARBON SOLVENT, SAID PRODUCT BEING PRODUCED BY INTIMATELY MIXING TOGETHER FINELY DIVIDED ZINC IN THE PROPORTIONS OF ABOUT 100 LBS. OF DRY ZINC WITH ABOUT 1 9/16 GALLONS OF DEPOLYMERIZED RUBBER PRODUCED BY MASTICATING CREPE RUBBER WITH ABOUT 2.5% BY WEIGHT OF A LINOLEATE SELECTED FROM THE GROUP CONSISTING OF COBALT AND LEAD LINOLEATES, DISSOLVING SAID RUBBER PRODUCT IN AN APPROXIMATELY EQUAL AMOUNT BY WEIGHT OF A HYDROCARBON SOLVENT AND ADDING THERETO ABOUT 1 LB. OF ALUMINUM STEARATE.
Claim 2
Dependent Claim
133 words
AN IMPROVED ZINC PRODUCT, SUITABLE FOR IMMEDIATE U SE BY INCORPORATION INTO PAINT COMPOSITIONS AND WHICH WILL KEEP IN GOOD CONDITION FOR SEVERAL YEARS WHEN STORED IN HERMETICALLY SEALED CONTAINERS COMPRISING A SMOOTH HOMOGENEOUS PASTE CONSISTING ESSENTIALLY OF FINELY DIVIDED ZINC PARTICLES WHICH ARE COATED WITH A THIN LAYER OF DEPOLYMERIZED RUBBER DISSOLVED IN A HYDROCARBON SOLVENT, SAID PRODUCT BEING PRODUCED BY INTIMATELY MIXING TOGETHER FINELY DIVIDED ZINC IN THE PROPORTIONS OF ABOUT 100 LBS. OF DRY ZINC WITH ABOUT 1 9/16 GALLONS OF DEPOLYMERIZED RUBBER PRODUCED BY MASTICATING CREPE RUBBER WITH ABOUT 2.5% BY WEIGHT OF A LINOLEATE SELECTED FROM THE GROUP CONSISTING OF COBALT AND LEAD LINOLEATES, DISSOLVING SAID RUBBER PRODUCT IN AN APPROXIMATELY EQUAL AMOUNT BY WEIGHT OF A HYDROCARBON SOLVENT AND ADDING THERETO ABOUT 1 LB. OF ALUMINUM STEARATE.
References Cited (Backward Citations)
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US1688857A
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US1863834A
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US1940315A
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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) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |