Patent US3465534A successfully refreshed from Google Patents.
US3465534A
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Differential flow sensing apparatus
Assignee: Texas Instruments Inc
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Filing: 1967-10-31
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Granted: 1969-09-09
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Expires: 1987-10-31
Abstract
No abstract record available.
Inventors
- 👤 Walter T Sutton Jr
- 👤 James D Broyles
- 👤 Manfred U Schweiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:43
CPC Classifications
G; G01; G01P; G01P5/00; G01P5/10; G01P5/12
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) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |