US2502540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing blockinglayer cells of the selenium type
Assignee: Koninklijke Philips NV
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Filing: 1945-09-21
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Granted: 1950-04-04
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Expires: 1965-09-21
Abstract
No abstract record available.
Inventors
- 👤 Johannes J A P Van Amstel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:26
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/01; H10D48/04; H10D48/048; H10D48/049
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
THE METHOD OF MANUFACTURING A BLOCKING LAYER CELL COMPRISING THE STEPS OF FORMING A SEMICONDUCTIVE ELECTRODE ON A BASE, FORMING A BLOCKING LAYER ON SAID SEMI-CONDUCTIVE ELECTRODE, FORMING A CONDUCTIVE ELECTRODE ON SAID BLOCKING LAYER, APPLYING A COATING OF LACQUER TO THE ELECTRODE ASSEMBLY, AND BAKING THE LACQUER AT A TEMPERATURE BETWEEN ABOUT 100* AND 200*C. UNTIL THE LACQUER HAS DRIED.
Claim 2
Independent Claim
61 words
THE METHOD OF MANUFACTURING A BLOCKING LAYER CELL COMPRISING THE STEPS OF FORMING A SEMICONDUCTIVE ELECTRODE ON A BASE, FORMING A BLOCKING LAYER ON SAID SEMI-CONDUCTIVE ELECTRODE, FORMING A CONDUCTIVE ELECTRODE ON SAID BLOCKING LAYER, APPLYING A COATING OF LACQUER TO THE ELECTRODE ASSEMBLY, AND BAKING THE LACQUER AT A TEMPERATURE BETWEEN ABOUT 100* AND 200*C. UNTIL THE LACQUER HAS DRIED.
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) | 1953-04-03 | 1953-10-03 | 1954-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-03 | 1957-10-03 | 1958-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-03 | 1961-10-03 | 1962-04-04 | $7700.00 | Window Closed / Lapsed |