Patent US3548662A successfully refreshed from Google Patents.
US3548662A
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US
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Pressure ratio measurement system
Assignee: Bendix Corp
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Filing: 1968-11-22
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Granted: 1970-12-22
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Expires: 1988-11-22
Abstract
No abstract record available.
Inventors
- 👤 William E Brandau
- 👤 Anthony E Napp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:04
CPC Classifications
G; G01; G01L; G01L15/00; G01L9/00; G01L9/02; G01L9/04; G01L9/045; G06; G06G; G06G7/00; G06G7/12; G06G7/16; G06G7/163
Claims Analysis
Total Claims: 0
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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) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |