US2524263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite metal insert
Assignee: GTE Sylvania Inc
•
Filing: 1944-03-04
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Granted: 1950-10-03
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Expires: 1964-03-04
Abstract
No abstract record available.
Inventors
- 👤 Walter E Kingston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:15
CPC Classifications
C; C03; C03C; C03C27/00; C03C27/04; C03C27/042; C03C27/046; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10S428/926; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12597; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/1291; Y10T428/12917
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
A COMPOSITE METAL INSERT HAVING A THICKNESS GREATER THAN .030 INCH FOR SEALING TO VITREOUS ARTICLES AND THE LIKE COMPRISING A CORE OF AN ALLOY CONTAINING APPROXIMATELY 38 TO 44% NICKEL, 3 TO 8% CHROMIUM, AND .1 TO .4% ALUMINUM, THE BALANCE BEING SUBSTANTIALLY ENTIRELY IRON, AND A SHEATH OF COPPER WHOSE THICKNESS IS APPROXIMATELY 3% OF THE THICKNESS OF SAID INSERT TENACIOUSLY BONDED TO THE CORE FOR THE PURPOSES SET FORTH.
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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) | 1953-10-02 | 1954-04-03 | 1954-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-02 | 1958-04-03 | 1958-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-02 | 1962-04-03 | 1962-10-03 | $7700.00 | Window Closed / Lapsed |