US3448980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic separation mechanism for the use of a copying machine
Assignee: Ricoh Co Ltd
•
Filing: 1967-08-28
•
Granted: 1969-06-10
•
Expires: 1987-08-28
Abstract
No abstract record available.
Inventors
- 👤 Nobuyuki Yanagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:47
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/225; B; B41; B41L; B41L11/00; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/24; B41P; B41P2700/00; B41P2700/10; B41P2700/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB873719A
Cited
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 |