US2938833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of determining cardiac function and composition therefor
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1957-03-29
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Granted: 1960-05-31
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Expires: 1977-03-29
Abstract
No abstract record available.
Inventors
- 👤 William G M Jones
- 👤 Jeffrey M Thorp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:53
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/52
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
14 words
A DIAGNOSTIC INDICATOR COMPOSITION FOR DETERMINING CARDIAC FUNCTION COMPRISING A DYESTUFF OF THE FORMULA:
References Cited (Backward Citations)
US611664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |