US3545431A
Expired / Lapsed
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Assignee: F Hoffmann La Roche AG
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Filing: 1968-06-18
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Granted: 1970-12-08
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Expires: 1988-06-18
Abstract
No abstract record available.
Inventors
- 👤 Ulrich A Frank
- 👤 Bernard C Wollmeringer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:47
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32467; Y10T403/32475; Y10T403/32501; Y10T403/70; Y10T403/7009; Y10T403/7011; Y10T403/7013; Y10T403/7047; Y10T403/7051; Y10T403/7075; Y10T403/7077
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |