US3434049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time domain reflectometry system having a current source for locating discontinuities in a transmission line
Assignee: Tektronix Inc
•
Filing: 1965-12-06
•
Granted: 1969-03-18
•
Expires: 1985-12-06
Abstract
No abstract record available.
Inventors
- 👤 George J Frye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:37
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/08; G01R31/11; G01R27/00; G01R27/28; G01R27/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2651752A
Cited
US3211997A
Cited
US3234340A
Cited
US3170124A
Cited
US3191065A
Cited
US3286104A
Cited
US3264494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |