US2484761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Viscosimeter
Assignee: Wyeth Holdings LLC
•
Filing: 1945-04-05
•
Granted: 1949-10-11
•
Expires: 1965-04-05
Abstract
No abstract record available.
Inventors
- 👤 Charles R Stock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:37
CPC Classifications
G; G01; G01N; G01N11/00; G01N11/10; G01N11/14; Y; Y10; Y10S; Y10S52/00; Y10S52/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1281042A
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US1960225A
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US2096222A
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US2122765A
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US2252464A
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US2316975A
Cited
GB549140A
Cited
US2344331A
Cited
US2340992A
Cited
US2359245A
Cited
US2403952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |