US2761445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for regulating fluid flow
Assignee: Don Baxter Inc
•
Filing: 1952-05-03
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Granted: 1956-09-04
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Expires: 1972-05-03
Abstract
No abstract record available.
Inventors
- 👤 Cherkin Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:46
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/142; A61M5/145; A61M5/148; A61M5/168; A61M5/16831; A61M5/16854; G; G05; G05D; G05D7/00; G05D7/06; G05D7/0617; Y; Y10; Y10S; Y10S128/00; Y10S128/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US103640A
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US334571A
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US1922941A
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US1988624A
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US2074223A
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US2409734A
Cited
US2533839A
Cited
US2602446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |