Patent US2501995A successfully refreshed from Google Patents.
US2501995A
Expired / Lapsed
US
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Acid resist ant molding composition and battery box
Assignee: Richardson Co
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Filing: 1946-11-09
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Granted: 1950-03-28
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Expires: 1966-11-09
Abstract
No abstract record available.
Inventors
- 👤 Edward R Dillehay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:10
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/10; H01M50/116; H01M50/121; H01M50/117; H01M50/122; H01M50/131; H01M50/134; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
AN ACID RESISTANT MOLDED ARTICLE FORMED FROM A COMPOSITION CROMPRISING A BINDER OF ASPHARLT AND A RESIN IN AMOUNT SUBSTANTIALLY 35% TO 65% BY WEIGHT OF SAID COMPOSITION, AND CONTAINING ACID-RESISTANT MINERAL MATTER AND ORGANIC FIBER OF ACID ATTACKABLE NATURE WHICH NORMALLY WOULD RESULT IN ACID PENETRATION INTO SAID ARTICLE, THE SAID BINDER HAVING A HARDNESS WHICH IS SUBSTANTIALLY BETWEEN 5 AND 30 PENETRATION AT 150*F. IN 5 SECONDS UNDER A WEIGHT OF 100 GRAMS, SAID RESIN BEING READILY POLYMERIZABLE IN THE PRESENCE OF STORAGE BATTERY ACID AT NORMAL TEMPERATURES OF USE OF THE ARTICLE, AND WHEN FULLY POLYMERIZED BEING ACID RESISTANT, SAID RESIN CHOSEN FROM A CLASS CONSISTING OF PARTIALLY POLYMERIZED FURFURYL ALCOHOL, PHENOL-FURFURAL, PHENOL-FORMALDEHYDE, AND MIXTURES THEREOF, SAID RESIN BEING IN AN INCOMPLETELY POLYMERIZED CONDITION IN SAID MOLDED ARTICLE, AND CONSTITUTING SUBSTANTIALLY 1 1/2% TO 30% BY WEIGHT OF THE TOTAL BINDER, AND SAID RESIN ACTING, UPON CONTACT OF SAID MOLDED ARTICLE WITH ACID, TO FORM A BARRIER TO RESIST ACID PENETRATION THEREIN.
Claim 2
Dependent Claim
165 words
AN ACID RESISTANT MOLDED ARTICLE FORMED FROM A COMPOSITION CROMPRISING A BINDER OF ASPHARLT AND A RESIN IN AMOUNT SUBSTANTIALLY 35% TO 65% BY WEIGHT OF SAID COMPOSITION, AND CONTAINING ACID-RESISTANT MINERAL MATTER AND ORGANIC FIBER OF ACID ATTACKABLE NATURE WHICH NORMALLY WOULD RESULT IN ACID PENETRATION INTO SAID ARTICLE, THE SAID BINDER HAVING A HARDNESS WHICH IS SUBSTANTIALLY BETWEEN 5 AND 30 PENETRATION AT 150*F. IN 5 SECONDS UNDER A WEIGHT OF 100 GRAMS, SAID RESIN BEING READILY POLYMERIZABLE IN THE PRESENCE OF STORAGE BATTERY ACID AT NORMAL TEMPERATURES OF USE OF THE ARTICLE, AND WHEN FULLY POLYMERIZED BEING ACID RESISTANT, SAID RESIN CHOSEN FROM A CLASS CONSISTING OF PARTIALLY POLYMERIZED FURFURYL ALCOHOL, PHENOL-FURFURAL, PHENOL-FORMALDEHYDE, AND MIXTURES THEREOF, SAID RESIN BEING IN AN INCOMPLETELY POLYMERIZED CONDITION IN SAID MOLDED ARTICLE, AND CONSTITUTING SUBSTANTIALLY 1 1/2% TO 30% BY WEIGHT OF THE TOTAL BINDER, AND SAID RESIN ACTING, UPON CONTACT OF SAID MOLDED ARTICLE WITH ACID, TO FORM A BARRIER TO RESIST ACID PENETRATION THEREIN.
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) | 1953-03-27 | 1953-09-26 | 1954-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-27 | 1957-09-26 | 1958-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-27 | 1961-09-26 | 1962-03-28 | $7700.00 | Window Closed / Lapsed |