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US2810541A
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US
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Flow metering unit
Assignee: Auto Research Corp
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Filing: 1951-07-03
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Granted: 1957-10-22
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Expires: 1971-07-03
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:57
CPC Classifications
F; F16; F16N; F16N27/00; F16N27/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US706781A
Cited
US1490291A
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US1404724A
Cited
US1526655A
Cited
US1632771A
Cited
US1714373A
Cited
US1948503A
Cited
US2367158A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |