Patent US3561858A successfully refreshed from Google Patents.
US3561858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic microfilm feeder, scanner and projector
Assignee: Xerox Corp
•
Filing: 1968-05-20
•
Granted: 1971-02-09
•
Expires: 1988-05-20
Abstract
Abstract A PROJECTOR FOR AUTOMATICALLY FEEDING MICROFILM APERTURE CARDS INCLUDING A CARD TRANSPORT FOR FEEDING CARD SERIATIM TO A CARD CARRIAGE, WHERE EACH CARD IS REGISTERED, SCANNED AND EJECTED AUTOMATICALLY FROM THE CARRIAGE.
Inventors
- 👤 Hans H Balbierer
- 👤 Frank R Hynes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:07
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/60; G03G15/602; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/62; G03B27/6207; G03B27/6221; G03B27/6235; G03B27/625; G03B27/6257
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |