US3399652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic toner concentrate detector
Assignee: AB Dick Co
•
Filing: 1967-06-14
•
Granted: 1968-09-03
•
Expires: 1987-06-14
Abstract
No abstract record available.
Inventors
- 👤 Stanley A Gawron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:15
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/0822; G03G15/0848; G03G15/0849; G03G15/0855; Y; Y10; Y10S; Y10S222/00; Y10S222/01; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/2509
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3003462A
Cited
US3094049A
Cited
US3348521A
Cited
US3348522A
Cited
US3299787A
Cited
US3233781A
Cited
US3348523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |