Patent US3548133A successfully refreshed from Google Patents.
US3548133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow transducer
Assignee: Sun Electric Corp
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Filing: 1968-12-30
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Granted: 1970-12-15
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Expires: 1988-12-30
Abstract
No abstract record available.
Inventors
- 👤 Arthur D Clauson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:22
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/40; F; F02; F02D; F02D9/00; F02D2700/00; F02D2700/02; F02D2700/0217; F02D2700/0261; F02D2700/0266
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |