US3417779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selectable concentration gas mixing apparatus
Assignee: Applied Biosystems Inc
•
Filing: 1967-01-09
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Granted: 1968-12-24
•
Expires: 1987-01-09
Abstract
No abstract record available.
Inventors
- 👤 Golay Marcel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:51
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/10; B01F23/19; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87249; Y10T137/87571; Y10T137/87652
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2509042A
Cited
US2600877A
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US2934448A
Cited
US2821210A
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US3115158A
Cited
US3290019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |