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US3495236A
Expired / Lapsed
US
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Transducer
Assignee: Unisys Corp
•
Filing: 1969-04-16
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Granted: 1970-02-10
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Expires: 1989-04-16
Abstract
No abstract record available.
Inventors
- 👤 Flavius A Mathamel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:47
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/94; H03K17/965; H03K17/97; H03K17/972
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3129419A
Cited
US3146381A
Cited
US3164825A
Cited
US3160875A
Cited
US3226506A
Cited
US3201537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |