Patent US3521060A successfully refreshed from Google Patents.
US3521060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for detecting the misrouting of transparencies during the process of imaging thereon
Assignee: Xerox Corp
•
Filing: 1967-08-24
•
Granted: 1970-07-21
•
Expires: 1987-08-24
Abstract
No abstract record available.
Inventors
- 👤 Ira L Seldin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:08
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/70; G03G15/706
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2416595A
Cited
US2953454A
Cited
US3149563A
Cited
US3246600A
Cited
US3240932A
Cited
US3280735A
Cited
US3278754A
Cited
US3360652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |