US2677877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass to metal seal and parts thereof and method of making same
Assignee: Cutler Hammer Inc
•
Filing: 1948-04-30
•
Granted: 1954-05-11
•
Expires: 1968-04-30
Abstract
No abstract record available.
Inventors
- 👤 Irvin W Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:06
CPC Classifications
C; C03; C03C; C03C27/00; C03C27/04; C03C27/042; C03C27/046; Y; Y10; Y10S; Y10S228/00; Y10S228/903; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12597; Y10T428/12771; Y10T428/12861; Y10T428/12944; Y10T428/12951; Y10T428/12958
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A METAL MEMBER ADAPTED FOR SEALING TO A BODY OF HIGH MELTING POINT GLASS, SAID MEMBER COMPRISING A DUAL-LAYERED INTEGRALLY MOLDED FERROUS ALLOY, ONE OF SAID LAYERS COMPRISING APPROXIMATELY 29 PER CENT NICKEL, 17 PER CENT COBALT, 0.3 PER CENT MANGANESE, REMAINDER IRON, THEREBY AFFORDING A COEFFICIENT OF EXPANSION FOR SAID LAYER WHICH APPROXIMATES THAT OF SAID GLASS BDOY, AND THE OTHER OF SAID LAYERS BEING RELATIVELY THINNER AND COMPRISING APPROXIMATELY 42 PER CENT NICKEL, 6 PER CENT CHROMIUM, REMAINDER IRON, TO AFFORD FUSION THEREOF WITH SAID GLASS BODY TO EFFECT A STRONG MECHANICAL SEAL THEREBETWEEN.
Claim 2
Dependent Claim
96 words
A METAL MEMBER ADAPTED FOR SEALING TO A BODY OF HIGH MELTING POINT GLASS, SAID MEMBER COMPRISING A DUAL-LAYERED INTEGRALLY MOLDED FERROUS ALLOY, ONE OF SAID LAYERS COMPRISING APPROXIMATELY 29 PER CENT NICKEL, 17 PER CENT COBALT, 0.3 PER CENT MANGANESE, REMAINDER IRON, THEREBY AFFORDING A COEFFICIENT OF EXPANSION FOR SAID LAYER WHICH APPROXIMATES THAT OF SAID GLASS BDOY, AND THE OTHER OF SAID LAYERS BEING RELATIVELY THINNER AND COMPRISING APPROXIMATELY 42 PER CENT NICKEL, 6 PER CENT CHROMIUM, REMAINDER IRON, TO AFFORD FUSION THEREOF WITH SAID GLASS BODY TO EFFECT A STRONG MECHANICAL SEAL THEREBETWEEN.
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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) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |