Patent US3456500A successfully refreshed from Google Patents.
US3456500A
Expired / Lapsed
US
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Fluid flow test equipment
Assignee: Holley Performance Products Inc
•
Filing: 1966-08-03
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Granted: 1969-07-22
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Expires: 1986-08-03
Abstract
No abstract record available.
Inventors
- 👤 Arthur P Zaske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:16
CPC Classifications
G; G01; G01F; G01F9/00; G01F9/001; G01F9/005; F; F02; F02M; F02M19/00; F02M19/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1737126A
Cited
US2271144A
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US2351027A
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US2445943A
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US2882520A
Cited
US2927461A
Cited
US3000207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |