Patent US2503171A successfully refreshed from Google Patents.
US3482564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diagnostic device
Assignee: F Hoffmann La Roche AG
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Filing: 1967-03-02
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Granted: 1969-12-09
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Expires: 1987-03-02
Abstract
No abstract record available.
Inventors
- 👤 Herbert Loren Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:31
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; A61B5/02141; A61B5/022; A61B5/02233; A61B5/16; A61B5/22; A61B5/224; A61B5/225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US505745A
Cited
US1433679A
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US1644824A
Cited
US2507858A
Cited
US2624334A
Cited
US3030945A
Cited
US3254671A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |