Patent US2369404A successfully refreshed from Google Patents.
Patent DE28676C successfully refreshed from Google Patents.
Patent US4313718A successfully refreshed from Google Patents.
Patent US3072234A successfully refreshed from Google Patents.
Patent US728780A successfully refreshed from Google Patents.
Patent US1389692A successfully refreshed from Google Patents.
Patent US3524993A successfully refreshed from Google Patents.
US3524993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triggering method and apparatus wherein the triggering period is determined
Assignee: Tektronix Inc
•
Filing: 1967-02-17
•
Granted: 1970-08-18
•
Expires: 1987-02-17
Abstract
No abstract record available.
Inventors
- 👤 George J Frye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:30
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/20; G01R13/22; G01R13/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-17 | 1974-02-16 | 1974-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-17 | 1978-02-16 | 1978-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-17 | 1982-02-16 | 1982-08-18 | $7700.00 | Window Closed / Lapsed |