US3479664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servo positioning system
Assignee: Ricoh Printing Systems America Inc
•
Filing: 1965-12-28
•
Granted: 1969-11-18
•
Expires: 1985-12-28
Abstract
No abstract record available.
Inventors
- 👤 Raymond Stuart-Williams
- 👤 Sung Pal Chur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:35
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/20; G11; G11B; G11B5/00; G11B5/48; G11B5/58; G11B5/596; G11B5/59633
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3156906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |