Patent US2759986A successfully refreshed from Google Patents.
US2759986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primary cell
Assignee: RCA Corp
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Filing: 1953-11-20
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Granted: 1956-08-21
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Expires: 1973-11-20
Abstract
No abstract record available.
Inventors
- 👤 Clarence K Morehouse
- 👤 Glicksman Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:06
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M4/00; H01M4/02; H01M4/36; H01M4/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
25 words
A PRIMARY CELL INCLUDING A CATHODE CONSISTING ESSENTIALLY OF SULFUR, AN AQUEOUS ELECTROLYTE CONSISTING ESSENTIALLY OF MAGNESIUM BROMIDE, AND AN ANODE CONSISTING ESSENTIALLY OF MAGNESIUM.
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) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |