US2736840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device comprising a glow-discharge tube for amplifying voltage pulses, and glow discharge tube for use in such devices
Assignee: Hartford National Bank and Trust Co
•
Filing: 1951-11-01
•
Granted: 1956-02-28
•
Expires: 1971-11-01
Abstract
No abstract record available.
Inventors
- 👤 Tosswill Christopher Haly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:45
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/53; H03K3/55; G; G01; G01T; G01T1/00; G01T1/16; G01T1/17; H01; H01J; H01J17/00; H01J17/02; H01J17/04; H01J17/38; H01J17/40; H01J17/44; H01J7/00; H01J7/44; H01J2893/00; H01J2893/0064; H01J2893/0065; H01J2893/0068
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |