US3387586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic developer apparatus
Assignee: AB Dick Co
•
Filing: 1966-06-06
•
Granted: 1968-06-11
•
Expires: 1986-06-06
Abstract
No abstract record available.
Inventors
- 👤 Loren E Shelffo
- 👤 Robert M East
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:29
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2712508A
Cited
US2695004A
Cited
US3081737A
Cited
US3132048A
Cited
US3145122A
Cited
US3233587A
Cited
US3246629A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |