Patent US2661388A successfully refreshed from Google Patents.
US2661388A
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Primary cells
Assignee: Federal Telecommunication Laboratories Inc
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Filing: 1952-05-06
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Granted: 1953-12-01
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Expires: 1972-05-06
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Warner
- 👤 Andre R Gobat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:25
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/06; H01M6/00; H01M6/04; H01M6/06; H01M6/10; H01M6/30; H01M6/32; H01M4/36; H01M4/58; H01M4/582; H01M50/00; H01M50/50; H01M50/531; H01M50/538
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A PRIMARY CELL COMPRISING A COMPOSITE CATHODE HAVING A BASE OF A CONDUCTIVE MATERIAL OTHER THAN SILVER AND A MICROCRYSTALLINE LAYER OF A SILVER HALIDE ON SAID BASE, THE CRYSTALS COMPRISING SAID SILVER HALIDE LAYER BEING ORIENTED FOR THE MOST PART SUBSTANTIALLY PERPENDICULAR TO THE SURFACE OF SAID BASE, AN ANODE OF MAGNESIUM, AND A POROUS ELECTRICAL INSULTING MATERIAL SEPARATING THE CATHODE AND ANODE.
Claim 2
Dependent Claim
64 words
A PRIMARY CELL COMPRISING A COMPOSITE CATHODE HAVING A BASE OF A CONDUCTIVE MATERIAL OTHER THAN SILVER AND A MICROCRYSTALLINE LAYER OF A SILVER HALIDE ON SAID BASE, THE CRYSTALS COMPRISING SAID SILVER HALIDE LAYER BEING ORIENTED FOR THE MOST PART SUBSTANTIALLY PERPENDICULAR TO THE SURFACE OF SAID BASE, AN ANODE OF MAGNESIUM, AND A POROUS ELECTRICAL INSULTING MATERIAL SEPARATING THE CATHODE AND ANODE.
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) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |