US3449725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic digital data processing system for continuous flow analysis
Assignee: INFOTRONICS CORP Inc
•
Filing: 1966-10-11
•
Granted: 1969-06-10
•
Expires: 1986-10-11
Abstract
No abstract record available.
Inventors
- 👤 Bernard J Eckelkamp
- 👤 David W Spence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:51
CPC Classifications
H; H03; H03M; H03M1/00; G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/27; G01N30/00; G01N30/02; G01N30/86; G01N30/8624; G01N30/8631; H03M1/10; H03M1/1009
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |