US2484084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gaseous tube and circuit
Assignee: International Business Machines Corp
•
Filing: 1945-11-27
•
Granted: 1949-10-11
•
Expires: 1965-11-27
Abstract
No abstract record available.
Inventors
- 👤 Clyde J Fitch
- 👤 Robert N Eichorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:55
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/50; H01J17/52; H01J17/54; H01J17/56; H03; H03K; H03K17/00; H03K17/51; H03K17/52; H04; H04J; H04J3/00; H04J3/18; H04L; H04L13/00; H04L13/02; H04L13/10; H04L13/12; H04L13/14; H04L25/00; H04L25/38; H04L25/40; H04L25/45; H04L5/00; H04L5/22; H04L5/24; H04L5/245; H04Q; H04Q1/00; H04Q1/18; H04Q1/30; H04Q1/39
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1746670A
Cited
US1731687A
Cited
US2060506A
Cited
US2099065A
Cited
US2134577A
Cited
US2188159A
Cited
US2210574A
Cited
US2272070A
Cited
US2332977A
Cited
US2329792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |