Patent US2827853A successfully refreshed from Google Patents.
US2827853A
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US
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Pumps for metering liquids
Assignee: Smiths Technologies Ltd
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Filing: 1955-04-08
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Granted: 1958-03-25
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Expires: 1975-04-08
Abstract
No abstract record available.
Inventors
- 👤 Bradley John Ramsay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:35
CPC Classifications
G; G01; G01F; G01F3/00; G01F3/02; G01F3/20; G01F3/36; G01F3/38
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) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |