US3141394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Document recording systems
Assignee: General Electric Co
•
Filing: 1963-02-26
•
Granted: 1964-07-21
•
Expires: 1983-02-26
Abstract
No abstract record available.
Inventors
- 👤 David R Cunningham
- 👤 Somers Lewis Edmond
- 👤 John D Stone
- 👤 Arie W Hartman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:55
CPC Classifications
G; G03; G03G; G03G16/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
113 words
EXPOSURE APPARATUS FOR DEVELOPING AN ELECTROSTATIC CHARGE ON A FLEXIBLE THERMOPLASTIC TAPE COMPRISING A RIGID PHOTOCONDUCTIVE ASSEMBLY ON ONE SIDE OF SAID TAPE HAVING SPACING MEANS AFFIXED TO THE SURFACE ADJACENT TO SAID TAPE, A RIGID TRANSPARENT PLATE ON THE OTHER SIDE OF SAID TAPE HAVING OPAQUE MARKINGS AND A CHANNEL ON THE SURFACE ADJACENT TO SAID TAPE, MEANS ATTACHED TO SAID PHOTOCONDUCTIVE ASSEMBLY FOR BRINGING SAID SPACING MEANS INTO INTIMATE CONTACT WITH THE SURFACE OF SAID TAPE, MEANS ATTACHED TO SAID PLATE FOR EVACUATING SAID CHANNEL TO DRAW SAID TAPE INTO INTIMATE CONTACT WITH THE SURFACE OF SAID PLATE, AND MEANS FOR APPLYING LIGHT RADIATION TO SAID PHOTOCONDUCTIVE ASSEMBLY THROUGH SAID PLATE.
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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |