US3448011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: F Hoffmann La Roche AG
•
Filing: 1968-06-14
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Granted: 1969-06-03
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Expires: 1988-06-14
Abstract
No abstract record available.
Inventors
- 👤 Rocco Joseph Russomanno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:24
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/01; B01D29/05; B01D29/88; B01D29/92; B01D29/96; C; C12; C12M; C12M37/00; C12M37/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2879207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |