Patent US2944946A successfully refreshed from Google Patents.
US2944946A
Expired / Lapsed
US
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Catalytic element and method of manufacturing such elements
Assignee: Napier Turbochargers Ltd
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Filing: 1956-05-04
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Granted: 1960-07-12
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Expires: 1976-05-04
Abstract
No abstract record available.
Inventors
- 👤 Bernard F A Lane
- 👤 Gordon R Strickland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:53
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/48; B01J23/50; B01J37/00; B01J37/34; B01J37/348; C; C01; C01B; C01B13/00; C01B13/02; C01B13/0203; C01B13/0211; C01B13/0214
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A METHOD OF PRODUCING A CATALYTIC ELEMENT FOR DE COMPOSING FLUID AND CONSISTING OF A METAL SUPPORTING STRUCTURE AND A COATING OF SILVER APPLIED TO SAID METAL SUPPORTING STRUCTURE, WHICH COMPRISES THE STEPS OF APPLYING A COATING OF SILVER TO SAID SUPPORTING STRUCTURE LEAVING INTERSTICES EXTENDING THROUGH SAID SILVER COATING TO SAID SUPPORTING STRUCTURE, THEN ANODICALLY TREATING SAID SILVER COATED SUPPORTING STRUCTURE IN A BATH OF AN ALKALINE CARBONATE SOLUTION TO FORM SILVER OXIDE UPON SAID SILVER COATING, AND THEN IMMERSING THE ANODICALLY TREATED STRUCTURE IN AN AQUEOUS SOLUTION OF AMMONIA INTO WHICH SOLUTION SILVER OXIDE DISSOLVES FROM THE SURFACE OF SAID SILVER COATING AND FROM WHICH METALLIC SILVER IS DEPOSITED N ARBORESCENT FORM ON EXPOSED AREAS OF THE METAL OF SAID SUPPORTING STRUCTURE.
Claim 2
Independent Claim
124 words
A METHOD OF PRODUCING A CATALYTIC ELEMENT FOR DE COMPOSING FLUID AND CONSISTING OF A METAL SUPPORTING STRUCTURE AND A COATING OF SILVER APPLIED TO SAID METAL SUPPORTING STRUCTURE, WHICH COMPRISES THE STEPS OF APPLYING A COATING OF SILVER TO SAID SUPPORTING STRUCTURE LEAVING INTERSTICES EXTENDING THROUGH SAID SILVER COATING TO SAID SUPPORTING STRUCTURE, THEN ANODICALLY TREATING SAID SILVER COATED SUPPORTING STRUCTURE IN A BATH OF AN ALKALINE CARBONATE SOLUTION TO FORM SILVER OXIDE UPON SAID SILVER COATING, AND THEN IMMERSING THE ANODICALLY TREATED STRUCTURE IN AN AQUEOUS SOLUTION OF AMMONIA INTO WHICH SOLUTION SILVER OXIDE DISSOLVES FROM THE SURFACE OF SAID SILVER COATING AND FROM WHICH METALLIC SILVER IS DEPOSITED N ARBORESCENT FORM ON EXPOSED AREAS OF THE METAL OF SAID SUPPORTING STRUCTURE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |