Patent US2469274A successfully refreshed from Google Patents.
Patent US2745172A successfully refreshed from Google Patents.
US2745172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite assembly for bonding plates of dissimilar metals
Assignee: Individual
•
Filing: 1951-06-06
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Granted: 1956-05-15
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Expires: 1971-06-06
Abstract
No abstract record available.
Inventors
- 👤 Leyshon W Townsend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:54
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/04; B23K35/00; B23K35/001; Y; Y10; Y10S; Y10S29/00; Y10S29/038; Y10T; Y10T29/00; Y10T29/30; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12035; Y10T428/12063; Y10T428/12069; Y10T428/12139; Y10T428/12229; Y10T428/12271; Y10T428/12292; Y10T428/12493; Y10T428/12632; Y10T428/31504; Y10T428/31652; Y10T428/31656
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A COMPOSITE ASSEMBLY FOR BONDING PLATES OF DISSIMILAR METALS, COMPRISING: AT LEAST A PAIR OF SUPERIMPOSED PLATES COMPOSED OF FORGEABLE, DISSIMILAR METALS; A REDUCING AGENT WHICH VOTALIZES BELOW THE FORGING TEMPERATURE OF SAID PLATES, DISPOSED THEREBETWEEN; METAL SEALING MEANS EXTENDING PERIPHERALLY ABOUT AND WELDED TO SAID ASSEMBLY AND SEALING THE SAME IN A SUBSTANTIALLY GAS-TIGHT WELDED JOINT; VENTING MEANS EXTENDING THROUGH SAID SEALING MEANS FROM THE EXTERIOR TO THE INTERIOR OF SAID ASSEMBLY, SAID VENTING MEANS COMPRISING AT LEAST ONE METAL TUBE FILLED WITH A REFRACTORY PACKING, FOR LIMITING GASEOUS FLOW BETWEEN THE EXTERIOR AND INTERIOR OF SAID ASSEMBLY.
Claim 2
Dependent Claim
99 words
A COMPOSITE ASSEMBLY FOR BONDING PLATES OF DISSIMILAR METALS, COMPRISING: AT LEAST A PAIR OF SUPERIMPOSED PLATES COMPOSED OF FORGEABLE, DISSIMILAR METALS; A REDUCING AGENT WHICH VOTALIZES BELOW THE FORGING TEMPERATURE OF SAID PLATES, DISPOSED THEREBETWEEN; METAL SEALING MEANS EXTENDING PERIPHERALLY ABOUT AND WELDED TO SAID ASSEMBLY AND SEALING THE SAME IN A SUBSTANTIALLY GAS-TIGHT WELDED JOINT; VENTING MEANS EXTENDING THROUGH SAID SEALING MEANS FROM THE EXTERIOR TO THE INTERIOR OF SAID ASSEMBLY, SAID VENTING MEANS COMPRISING AT LEAST ONE METAL TUBE FILLED WITH A REFRACTORY PACKING, FOR LIMITING GASEOUS FLOW BETWEEN THE EXTERIOR AND INTERIOR OF SAID ASSEMBLY.
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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) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |