US2816153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primary alkaline cell
Assignee: Burgess Battery Co
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Filing: 1956-04-26
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Granted: 1957-12-10
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Expires: 1976-04-26
Abstract
No abstract record available.
Inventors
- 👤 Paul G Kort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:52
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/50; H01M50/543; H01M50/552; H01M50/559; H01M50/56; H01M6/00; H01M6/04; H01M6/06; H01M6/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
AN ELECTRIC CELL COMPRISING A PAIR OF OPEN TOP METAL CUPS OPPOSITELY ORIENTED AND IN MUTUALLY TELESCOPING RELATION, THE SIDE WALLS OF SAID CUPS BEING SAPCED APART TO FORM AN ANNULAR SPACE THEREBETWEEN, A GASKET UNDER PRESSURE BETWEEN THE EDGE OF THE INNER CUP AND THE BOTTOM OF THE OUTER CUP, SAID GASKET BEING ENERALLY U-SHAPED IN CROSS SECTION AND EXTENDING IN CONTACT WITH THE INTERIOR AND EXTERIOR SURFACES OF THE SIDE WALL OF SAID INNER CUP, SAID GASKET PERMITTING ESCAPE OF GAS UNDER PRESSURE FROM THE INTERIOR OF SAID INNER CUP, THE BOTTOM PORTION OF SAID INNER CUP PROVIDING AN ANNULAR SHOULDER, AN INTURNED FLANGE ON SAID OUTER CUP OVERLYING SAID SHOULDER, A SPACING MEMBER BETWEEN SAID FLANGES AND SAID SHOULDER,
Claim 2
Dependent Claim
122 words
AN ELECTRIC CELL COMPRISING A PAIR OF OPEN TOP METAL CUPS OPPOSITELY ORIENTED AND IN MUTUALLY TELESCOPING RELATION, THE SIDE WALLS OF SAID CUPS BEING SAPCED APART TO FORM AN ANNULAR SPACE THEREBETWEEN, A GASKET UNDER PRESSURE BETWEEN THE EDGE OF THE INNER CUP AND THE BOTTOM OF THE OUTER CUP, SAID GASKET BEING ENERALLY U-SHAPED IN CROSS SECTION AND EXTENDING IN CONTACT WITH THE INTERIOR AND EXTERIOR SURFACES OF THE SIDE WALL OF SAID INNER CUP, SAID GASKET PERMITTING ESCAPE OF GAS UNDER PRESSURE FROM THE INTERIOR OF SAID INNER CUP, THE BOTTOM PORTION OF SAID INNER CUP PROVIDING AN ANNULAR SHOULDER, AN INTURNED FLANGE ON SAID OUTER CUP OVERLYING SAID SHOULDER, A SPACING MEMBER BETWEEN SAID FLANGES AND SAID SHOULDER,
References Cited (Backward Citations)
US2636062A
Cited
US2636063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |