Patent US3552957A successfully refreshed from Google Patents.
US3552957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamped photoconductive unit for electrophotography
Assignee: Eastman Kodak Co
•
Filing: 1967-03-06
•
Granted: 1971-01-05
•
Expires: 1987-03-06
Abstract
Abstract A PHOTOCONDUCTIVE MEMBER CARRYING A BROAD CLAMP PREASSEMBLED IN PERMANENT NONFRACTURING ELECTRICAL CONTACT WITH AN EXTREMELY THIN CONDUCTIVE LAYER OF SUCH MEMBER AND PROVIDING AN ELECTRICAL AND MECHANICAL COUPLING BETWEEN THE CONDUCTIVE LAYER AND ELECTROPHOTOGRAPHIC APPARATUS. THE CLAMP MAY CONTAIN MOUNTING PERFORATIONS TO FACILITATE PHYSICAL ATTACHEMENT TO SUCH APPARATUS.
Inventors
- 👤 Howard T Hodges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:45
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/75; B; B41; B41L; B41L29/00
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |