US2678342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primary battery unit with sprayed metallic electrodes
Assignee: Individual
•
Filing: 1952-06-05
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Granted: 1954-05-11
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Expires: 1972-06-05
Abstract
No abstract record available.
Inventors
- 👤 Donald C Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:47
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/40; H01M4/00; H01M4/02; H01M6/04; H01M6/06; H01M6/12; H01M6/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
AN ELECTRODE UNIT COMPRISING A CENTRAL LAYER OF POROUS PAPER ONE SIDE OF WHICH HAS BEEN SPRAYED WITH MOLTEN ZINC PARTICLES TO FORM A LAYER OF ZINC AND THE OTHER SIDE OF WHICH HAS BEEN SPRAYED WITH MOLTEN COPPER PARTICLES TO FORM A LAYER OF COPPER, SAID ZINC AND COPPER LAYERS GENERATING AN ELECTRICAL POTENTIAL BETWEEN THEM WHEN IMMERSED IN AN ACID, AND A THIN LAYER OF MANGANSES DIOXIDE BETWEEN SAID ZINC LAYER AND PAPER AND BETWEEN SAID COPPER LAYER AND PAPER.
Claim 2
Dependent Claim
82 words
AN ELECTRODE UNIT COMPRISING A CENTRAL LAYER OF POROUS PAPER ONE SIDE OF WHICH HAS BEEN SPRAYED WITH MOLTEN ZINC PARTICLES TO FORM A LAYER OF ZINC AND THE OTHER SIDE OF WHICH HAS BEEN SPRAYED WITH MOLTEN COPPER PARTICLES TO FORM A LAYER OF COPPER, SAID ZINC AND COPPER LAYERS GENERATING AN ELECTRICAL POTENTIAL BETWEEN THEM WHEN IMMERSED IN AN ACID, AND A THIN LAYER OF MANGANSES DIOXIDE BETWEEN SAID ZINC LAYER AND PAPER AND BETWEEN SAID COPPER LAYER AND PAPER.
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) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |