Patent US2569149A successfully refreshed from Google Patents.
US2569149A
Expired / Lapsed
US
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Bimetallic structure
Assignee: Individual
•
Filing: 1945-10-19
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Granted: 1951-09-25
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Expires: 1965-10-19
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Brennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:53
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/12; B; B32; B32B; B32B15/00; B32B15/01; B32B15/018; F16C33/122; F16C2204/00; F16C2204/02; F16C2204/04; F16C2204/10; F16C2204/20; F16C2204/22; F16C2223/00; F16C2223/30; F16C2223/44; F16C2223/70; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12771; Y10T428/12861; Y10T428/12896
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A BI-METALLIC STRUCTURE COMPRISING A FIRST COMPONENT OF SILVER WITH MINOR AMOUNTS OF NICKLE, COPPER, TIN, AND CADMIUM ALLOYED THEREWITH, AND A SECOND COMPONENT OF THE FOLLOWING COMPOSITION: ALUMINUM FROM ABOUT 88% TO ABOUT 98% COPPER FROM ABOUT 2% TO ABOUT 12% TOGETHER WITH SUCH OTHER ALLOYING ELEMENTS AND IMPURITIES AS ARE SOMETIMES FOUND IN ALLOYS OF THIS CHARACTER.
Claim 2
Dependent Claim
59 words
A BI-METALLIC STRUCTURE COMPRISING A FIRST COMPONENT OF SILVER WITH MINOR AMOUNTS OF NICKLE, COPPER, TIN, AND CADMIUM ALLOYED THEREWITH, AND A SECOND COMPONENT OF THE FOLLOWING COMPOSITION: ALUMINUM FROM ABOUT 88% TO ABOUT 98% COPPER FROM ABOUT 2% TO ABOUT 12% TOGETHER WITH SUCH OTHER ALLOYING ELEMENTS AND IMPURITIES AS ARE SOMETIMES FOUND IN ALLOYS OF THIS CHARACTER.
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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) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |