US3489525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System of automatic analysis
Assignee: Scientific Industries Inc
•
Filing: 1967-08-25
•
Granted: 1970-01-13
•
Expires: 1987-08-25
Abstract
No abstract record available.
Inventors
- 👤 Samuel Natelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:08
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/12; F04B43/1253; F04B43/1284; F04B43/1292; G; G01; G01N; G01N35/00; G01N35/08; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2559; Y10T137/265
Claims Analysis
Total Claims: 0
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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) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |