US2687448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery cap apparatus
Assignee: IND RES Inc
•
Filing: 1953-02-03
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Granted: 1954-08-24
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Expires: 1973-02-03
Abstract
No abstract record available.
Inventors
- 👤 Harold M Gulick
- 👤 Cresswell E Stedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:37
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; H01M10/52; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A CATALYTIC REACTOR UNIT ADAPTED TO BE USED WITHIN AN ELECTROLYTIC CELL FOR RECOMBINING HYDROGEN AND OXYGEN GASES ESCAPING FROM THE CELL TO THEREBY FORM WATER TO BE RETURNED TO THE CELL, COMPRISING A REACTOR CHAMBER ADAPTED TO COMMUNICATE WITH SAID CELL, A CATALYST UNIT ARRANGED IN THE SAID REACTOR CHAMBER AND INCLUDING A HIGHLY POROUS CATALYST CARRIER COATED WITH A WATER-RESISTANT BUT GAS-PERMEABLE COATING, CATALYST MATERIAL ARRANGED IN AND SURROUNDED BY SAID CARRIER TO RECOMBINE THE HYDROGEN AND OXYGEN GASES WHICH MAY BE EVOLVED FROM THE ELECTROLYTE TO FORM WATER THEREFROM, AND MEANS PERMITTING RETURN OF SAID RECOMBINED WATER IN THE FORM OF LIQUID TO THE CELL.
Claim 2
Dependent Claim
108 words
A CATALYTIC REACTOR UNIT ADAPTED TO BE USED WITHIN AN ELECTROLYTIC CELL FOR RECOMBINING HYDROGEN AND OXYGEN GASES ESCAPING FROM THE CELL TO THEREBY FORM WATER TO BE RETURNED TO THE CELL, COMPRISING A REACTOR CHAMBER ADAPTED TO COMMUNICATE WITH SAID CELL, A CATALYST UNIT ARRANGED IN THE SAID REACTOR CHAMBER AND INCLUDING A HIGHLY POROUS CATALYST CARRIER COATED WITH A WATER-RESISTANT BUT GAS-PERMEABLE COATING, CATALYST MATERIAL ARRANGED IN AND SURROUNDED BY SAID CARRIER TO RECOMBINE THE HYDROGEN AND OXYGEN GASES WHICH MAY BE EVOLVED FROM THE ELECTROLYTE TO FORM WATER THEREFROM, AND MEANS PERMITTING RETURN OF SAID RECOMBINED WATER IN THE FORM OF LIQUID TO THE CELL.
References Cited (Backward Citations)
GB339824A
Cited
US2465202A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |