US2578518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding composition for battery containers
Assignee: Goodrich Corp
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Filing: 1948-05-26
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Granted: 1951-12-11
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Expires: 1968-05-26
Abstract
No abstract record available.
Inventors
- 👤 Charles H Ditz
- 👤 Harold A Hussey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:50
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/10; H01M50/131; H01M50/116; H01M50/121; H01M50/14; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A MOLDED BATTERY CONTAINER EXHIBITING A RESISTANCE OF AT LEAST 100 CYCLES TO THE A. S. T. M. HOT AND COLD CYCLE TEST, AN ACID ADSORPTION LESS THAN 0.15% WHEN A TWO-INCH SQUARE SPECIMEN OF THE WALL IS IMMERSED FOR 28 DAYS IN SULFURIC ACID (SP. GR. 1.30) AT 150* F., A NEGLIGIBLE BULGE WHEN FILED WITH SULFURIC ACID NSP. GR. 101) AND HEATED AT 160* F. FOR THREE HOURS, AND AN IMPACT STRENGTH (IZOD) OF AT LEAST 0.2 FT. LB. PER INCH OF NOTCH, SAID CONTAINER COMPRISING A HOMOGENOUS MIXTURE OF HIGH MOLECULAR WEIGHT POLYSTYRENE WITH FROM ONE-TENTH TO ONE-THIRD ITS WEIGHT OF A RUBBERY COPOLYMER CONTAINING FROM 50 TO 90% BY WEIGHT OF A BUTADIENE-1,3 HYDROCARBON HAVING FROM 4 TO 8 CARBON ATOMS, THE REMAINDER OF SAID COPOLYMER BEING COMBINED COPOLYMERIZABLE MATERIAL CONTAINING A SINGLE ETHYLENIC LINKAGE.
Claim 2
Dependent Claim
139 words
A MOLDED BATTERY CONTAINER EXHIBITING A RESISTANCE OF AT LEAST 100 CYCLES TO THE A. S. T. M. HOT AND COLD CYCLE TEST, AN ACID ADSORPTION LESS THAN 0.15% WHEN A TWO-INCH SQUARE SPECIMEN OF THE WALL IS IMMERSED FOR 28 DAYS IN SULFURIC ACID (SP. GR. 1.30) AT 150* F., A NEGLIGIBLE BULGE WHEN FILED WITH SULFURIC ACID NSP. GR. 101) AND HEATED AT 160* F. FOR THREE HOURS, AND AN IMPACT STRENGTH (IZOD) OF AT LEAST 0.2 FT. LB. PER INCH OF NOTCH, SAID CONTAINER COMPRISING A HOMOGENOUS MIXTURE OF HIGH MOLECULAR WEIGHT POLYSTYRENE WITH FROM ONE-TENTH TO ONE-THIRD ITS WEIGHT OF A RUBBERY COPOLYMER CONTAINING FROM 50 TO 90% BY WEIGHT OF A BUTADIENE-1,3 HYDROCARBON HAVING FROM 4 TO 8 CARBON ATOMS, THE REMAINDER OF SAID COPOLYMER BEING COMBINED COPOLYMERIZABLE MATERIAL CONTAINING A SINGLE ETHYLENIC LINKAGE.
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) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |