Patent US2803791A successfully refreshed from Google Patents.
US2803791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blocking layer rectifier cells
Assignee: US Philips Corp
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Filing: 1953-05-21
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Granted: 1957-08-20
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Expires: 1973-05-21
Abstract
No abstract record available.
Inventors
- 👤 Johannes Jacobus Asuerus P Ams
- 👤 Adrianus Van Wieringen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:59
CPC Classifications
H; H10; H10W; H10W90/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A BLOCKING RECTIFIER ASSEMBLY COMPRISING AN ELECTRICALLY CONDUCTIVE SUPPORTING PLATE HAVING OUTWARDLY FLARING SURFACE PORTIONS AND A PLURALITY OF SEPARATE SPACED RECTIFIER CELLS EACH COMPRISING A SEMI-CONDUCTIVE BODY CONSTITUTING AN ELECTRODE OF EACH OF SAID CELLS, SOLDER MEANS CONNECTING EACH OF SAID SEMI-CONDUCTIVE BODIES WITH AN OUTWARDLY FLARING PORTION OF THE SUPPORTING PLATE, AND A COUNTER-ELECTRODE ON A SURFACE OF EACH OF THE SEMICONDUCTIVE BODIES OPPOSITE THE SUPPORTING PLATE, THE TOTAL AREA OCCUPIED BY ALL OF SAID SEMI-CONDUCTIVE BODIES BEING LESS THAN ONE-HALF THE TOTAL SURFACE AREA OF THE SUPPORTING PLATE ON THE SIDE SUPPORTING THE CELLS.
Claim 2
Dependent Claim
97 words
A BLOCKING RECTIFIER ASSEMBLY COMPRISING AN ELECTRICALLY CONDUCTIVE SUPPORTING PLATE HAVING OUTWARDLY FLARING SURFACE PORTIONS AND A PLURALITY OF SEPARATE SPACED RECTIFIER CELLS EACH COMPRISING A SEMI-CONDUCTIVE BODY CONSTITUTING AN ELECTRODE OF EACH OF SAID CELLS, SOLDER MEANS CONNECTING EACH OF SAID SEMI-CONDUCTIVE BODIES WITH AN OUTWARDLY FLARING PORTION OF THE SUPPORTING PLATE, AND A COUNTER-ELECTRODE ON A SURFACE OF EACH OF THE SEMICONDUCTIVE BODIES OPPOSITE THE SUPPORTING PLATE, THE TOTAL AREA OCCUPIED BY ALL OF SAID SEMI-CONDUCTIVE BODIES BEING LESS THAN ONE-HALF THE TOTAL SURFACE AREA OF THE SUPPORTING PLATE ON THE SIDE SUPPORTING THE CELLS.
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) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |