US2760261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of bonding articles
Assignee: Commonwealth Engineering Company of Ohio
•
Filing: 1952-04-17
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Granted: 1956-08-28
•
Expires: 1972-04-17
Abstract
No abstract record available.
Inventors
- 👤 Pawlyk Peter
- 👤 Herman R Nack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:15
CPC Classifications
C; C03; C03C; C03C27/00; C03C27/04; C03C27/042; C03C27/046; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/938; Y10T; Y10T403/00; Y10T403/47
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
A METHOD OF FABRICATING A SEALED ELECTRONIC TUBE HAVING A METALIC BULB AND A GLASS BASE WITH AN EXTERNAL FLANGE AND COMPRISING THE STEPS OF ASSEMBLING THE METALLIC BULB AND GLASS BASE TO FORM AN ENCLOSURE BY OVERLAPING THE PERPHERAL END OF THE BULB WITH THE EXTERNAL BASE FLANGE TO FORM A SPACE BETWEEN THE OUTER FACE OF THE BULB AND THE FFLANGE OF THE BASE, COVERING WITH A REMOVABLE HEAT INSULATING MATERIAL ALL PORTIONS OF THE TUBE EXCLUSIVE OF THE SURFACES OF THE SPACE TO PREVENT DEPOSITING OF METAL ON SAID PORTIONS OF THE ASSEMBLY, PLACING THE ASSEMBLY IN A CHAMBER, EXPOSING THE ASSEMBLY AND THE SPACE TO AN ATMOSPHERE OF INERT AS AND A HEAT-DECOMPOSABLE GASEOUS METAL COMPOUND AT A PRESSURE ABOVE ATMOPHERIC, HEATING THE SURFACES OF THE SPACE BETWEEN THE BULB AND BASE IN THE INERT ATMOSPHERE AND IN THE PRESENCE OF THE HEAT-DECOMPOSABLE GASEOUS METAL COMPOUND, THE HEATING BEING SUFFICIENT TO RAISE THE TEMPERATURE OF THE BULB AND BASE SPACE SURFACES TO CAUSE THE DECOMPOSITION OF THE GASEOUS METAL COMPOUND AND DEPOSITING OF THE METAL IN THE SPACE AT THE JUNCTURE OF THE BULB AND BASE TO SEAL THE PARTH WITH METAL.
Claim 2
Independent Claim
196 words
A METHOD OF FABRICATING A SEALED ELECTRONIC TUBE HAVING A METALIC BULB AND A GLASS BASE WITH AN EXTERNAL FLANGE AND COMPRISING THE STEPS OF ASSEMBLING THE METALLIC BULB AND GLASS BASE TO FORM AN ENCLOSURE BY OVERLAPING THE PERPHERAL END OF THE BULB WITH THE EXTERNAL BASE FLANGE TO FORM A SPACE BETWEEN THE OUTER FACE OF THE BULB AND THE FFLANGE OF THE BASE, COVERING WITH A REMOVABLE HEAT INSULATING MATERIAL ALL PORTIONS OF THE TUBE EXCLUSIVE OF THE SURFACES OF THE SPACE TO PREVENT DEPOSITING OF METAL ON SAID PORTIONS OF THE ASSEMBLY, PLACING THE ASSEMBLY IN A CHAMBER, EXPOSING THE ASSEMBLY AND THE SPACE TO AN ATMOSPHERE OF INERT AS AND A HEAT-DECOMPOSABLE GASEOUS METAL COMPOUND AT A PRESSURE ABOVE ATMOPHERIC, HEATING THE SURFACES OF THE SPACE BETWEEN THE BULB AND BASE IN THE INERT ATMOSPHERE AND IN THE PRESENCE OF THE HEAT-DECOMPOSABLE GASEOUS METAL COMPOUND, THE HEATING BEING SUFFICIENT TO RAISE THE TEMPERATURE OF THE BULB AND BASE SPACE SURFACES TO CAUSE THE DECOMPOSITION OF THE GASEOUS METAL COMPOUND AND DEPOSITING OF THE METAL IN THE SPACE AT THE JUNCTURE OF THE BULB AND BASE TO SEAL THE PARTH WITH METAL.
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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) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |