US3199967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing hermetic seal
Assignee: Haveg Industries Inc
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Filing: 1960-08-17
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Granted: 1965-08-10
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Expires: 1980-08-17
Abstract
No abstract record available.
Inventors
- 👤 David M Pixley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:23
CPC Classifications
C; C03; C03C; C03C27/00; C03C27/04; C03C27/042; C03C27/044
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A METHOD OF IMPROVING THE BOND OF A GLASS-MICA INSULATING COMPOSITION TO A METAL INSERT COMPRISING PREBEADING THE METAL INSERT WITH A FUSED GAS COMPOSITION WHICH WILL BOND TO BOTH THE METAL AND TO THE GLASS-MICA COMPOSITION, MOLDING AN ARTICLE FROM THE PREBEADED MEATL INSERT AND THE GLASS-MICA COMPOSITION AT 3 TO 10 TONS/SQ. IN. AT A TEMPERATURE OF 600-800*F., ANNEALING THE MOLDED ARTICLE AT ATMOSPHERIC PRESSURE AT A TEMPERATURE OF 600-800*F., AND POST HEATING THE METAL INSERT AT A TEMPERATURE OF 1100* TO 1500*F. TO REFUSE THE
Claim 2
Independent Claim
88 words
A METHOD OF IMPROVING THE BOND OF A GLASS-MICA INSULATING COMPOSITION TO A METAL INSERT COMPRISING PREBEADING THE METAL INSERT WITH A FUSED GAS COMPOSITION WHICH WILL BOND TO BOTH THE METAL AND TO THE GLASS-MICA COMPOSITION, MOLDING AN ARTICLE FROM THE PREBEADED MEATL INSERT AND THE GLASS-MICA COMPOSITION AT 3 TO 10 TONS/SQ. IN. AT A TEMPERATURE OF 600-800*F., ANNEALING THE MOLDED ARTICLE AT ATMOSPHERIC PRESSURE AT A TEMPERATURE OF 600-800*F., AND POST HEATING THE METAL INSERT AT A TEMPERATURE OF 1100* TO 1500*F. TO REFUSE THE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |