US2792272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallic bond
Assignee: General Electric Co
•
Filing: 1954-10-22
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Granted: 1957-05-14
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Expires: 1974-10-22
Abstract
No abstract record available.
Inventors
- 👤 James E Beggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:54
CPC Classifications
H; H01; H01J; H01J21/00; H01J21/36; C; C04; C04B; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/632; C04B35/636; C04B35/6365; C04B37/00; C04B37/02; C04B37/023; C04B37/026; H01J5/00; H01J5/20; H01J5/22; H01J5/26; H01J9/00; H01J9/38; C04B2235/00; C04B2235/65; C04B2235/656; C04B2235/6567; C04B2237/00; C04B2237/02; C04B2237/12; C04B2237/121; C04B2237/122; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/341; C04B2237/343; C04B2237/40; C04B2237/403; C04B2237/405; C04B2237/406; C04B2237/407; C04B2237/50; C04B2237/52; C04B2237/525; C04B2237/64; C04B2237/76; C04B2237/765; H01J2893/00; H01J2893/0033; H01J2893/0037; H01J2893/0041
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
114 words
THE METHOD OF FABRICATING AN ELESCTRIC DISCHARGE DEVICE INCLUDING AN ENVELOPE ALTERNATE METAL AND REFRACTORY INSULATING MEMBERS AND A CATHODE WITHIN THE ENVELOPE WHICH COMPRISES ASSEMBLING THE MEMBERS IN A STACK IN ESSENTIALLY THE RELATIVE POSITIONS OCCUPIED IN A FABRICATED DEVICE, SUPPORTING THE ASSEMBLY WITHIN AN ENCLOSURE, HEATING THE ASSEMBLY TO A PREDETERMINED TEMPERATURE WHILE MAINTAINING THE ENCLOSURE UNDER VACUUM TO DEGAS THE MEMBERS, EVACUATE THE ENVELOPE THROUGH THE JOINTS BETWEEN THE MEMBERS AND ACTIVATE THE CATHODE, COOLING THE ASSEMBLY AN IMMERSING AT LEAST A PORTION OF THE ASSEMBLY IN A MOLTEN BODY OF SOLDER HAVING A MELTING TEMPERATURE SUBSTANTIALLY LOWER THEN THE PREDETERMINED TEMPERATURE TO SOLDER THE MEMBER TOGETHER AND SEAL THE ENVELOPE.
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) | 1960-05-13 | 1960-11-12 | 1961-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-13 | 1964-11-12 | 1965-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-13 | 1968-11-12 | 1969-05-14 | $7700.00 | Window Closed / Lapsed |