Patent FR972146A successfully refreshed from Google Patents.
US3528006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for automatically testing the pulse propagation characteristics of digital electronic circuits
Assignee: SP-MICROWAVE Inc
•
Filing: 1968-04-01
•
Granted: 1970-09-08
•
Expires: 1988-04-01
Abstract
No abstract record available.
Inventors
- 👤 David C Davis Jr
- 👤 John M Ritter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:58
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/22; G06F11/24; G01; G01R; G01R31/00; G01R31/28; G01R31/317
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3418573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |