US2862336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved methods of making electric discharge device envelopes
Assignee: General Electric Co
•
Filing: 1956-04-25
•
Granted: 1958-12-02
•
Expires: 1976-04-25
Abstract
No abstract record available.
Inventors
- 👤 Monte W Edwards
- 👤 Martin O Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:45
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/20; H01J5/22; H01J5/24; H01J2893/00; H01J2893/0033; H01J2893/0037; H01J2893/0038; H01J2893/0039
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2089044A
Cited
US2171226A
Cited
DE764173C
Cited
US2296579A
Cited
US2581945A
Cited
US2573553A
Cited
US2572055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |