US3058323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of separating devitrified glass seals
Assignee: Corning Glass Works
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Filing: 1958-03-24
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Granted: 1962-10-16
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Expires: 1978-03-24
Abstract
No abstract record available.
Inventors
- 👤 Stewart A Claypoole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:52
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/20; H01J2893/00; H01J2893/0033; H01J2893/0037; Y; Y10; Y10S; Y10S156/00; Y10S156/918; Y10S156/919; Y10T; Y10T156/00; Y10T156/11; Y10T156/1142; Y10T156/1147
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A METHOD OF SEPARATING COMPONENT PARTS OF AN ARTICLE THAT ARE JOINED TOGETHER WITH A DEVITRIFIED LEAD-ZINCBORATE GLASS SEAL FORMED AT AN ELEVATED GLASS DEVITRIFYING TEMPERATURE WHICH COMPRISES HEATING AT LEAST THE SEATING ZONE OF THE ARTICLE TO A TEMPERATURE THAT IS ABOUT 50*C. ABOVE THE DEVITRIFYING
Claim 2
Independent Claim
47 words
A METHOD OF SEPARATING COMPONENT PARTS OF AN ARTICLE THAT ARE JOINED TOGETHER WITH A DEVITRIFIED LEAD-ZINCBORATE GLASS SEAL FORMED AT AN ELEVATED GLASS DEVITRIFYING TEMPERATURE WHICH COMPRISES HEATING AT LEAST THE SEATING ZONE OF THE ARTICLE TO A TEMPERATURE THAT IS ABOUT 50*C. ABOVE THE DEVITRIFYING
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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) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |