Patent US3474432A successfully refreshed from Google Patents.
US3474432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer position detector
Assignee: Unisys Corp
•
Filing: 1966-04-27
•
Granted: 1969-10-21
•
Expires: 1986-04-27
Abstract
No abstract record available.
Inventors
- 👤 Ernesto G Sevilla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:33
CPC Classifications
G; G11; G11B; G11B21/00; G11B21/02; G11B21/10; G11B21/106
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2963555A
Cited
US2960568A
Cited
US3041415A
Cited
US3263031A
Cited
US3339192A
Cited
US3337693A
Cited
US3387295A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |