Patent US2544115A successfully refreshed from Google Patents.
US2544115A
Expired / Lapsed
US
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Leakproof battery
Assignee: Glenside Bag Co
•
Filing: 1945-12-22
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Granted: 1951-03-06
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Expires: 1965-12-22
Abstract
No abstract record available.
Inventors
- 👤 Wagner Melvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:34
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/10; H01M50/172; H01M50/174; H01M50/182; H01M6/00; H01M6/04; H01M6/06; H01M6/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
52 words
A DRY CELL COMPRISING A METAL CONTAINER HAVING AN INTEGRAL BOTTOM PORTION, A CENTRALLY DISPOSED CORE WITHIN THE CONTAINER, AN ELECTROLYTE BETWEEN THE CORE AND THE CONTAINER, THE UPPER PORTION OF THE CONTAINER BEING CLOSED BY AN INSULATING COMPOUND TO HOLD THE CARBON CORE IN POSITION, SAID COMPOUND INCLUDING BUBBLES OF EN-
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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) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |