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Patent US2472056A successfully refreshed from Google Patents.
US2472056A
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Flowmeter
Assignee: Lane Wells Co
•
Filing: 1944-12-11
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Granted: 1949-05-31
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Expires: 1964-12-11
Abstract
No abstract record available.
Inventors
- 👤 Russell M Otis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:28
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/22; G01F1/24; Y; Y10; Y10S; Y10S73/00; Y10S73/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US830338A
Cited
US1567940A
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DE378726C
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US1641744A
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DE594182C
Cited
US1917974A
Cited
GB408605A
Cited
FR776172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-30 | 1952-11-29 | 1953-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-30 | 1956-11-29 | 1957-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-30 | 1960-11-29 | 1961-05-31 | $7700.00 | Window Closed / Lapsed |