US3497685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fault location system
Assignee: International Business Machines Corp
•
Filing: 1965-11-03
•
Granted: 1970-02-24
•
Expires: 1985-11-03
Abstract
No abstract record available.
Inventors
- 👤 Thomas S Stafford
- 👤 Joseph A Sarubbi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:44
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/22; G06F11/2205; G06F11/2221; G06F11/26; G06F11/273; G06F11/277; G06F11/2294
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2690299A
Cited
US2945915A
Cited
US3034051A
Cited
US3155939A
Cited
US3246240A
Cited
US3302109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |