US3520681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectrosolography
Assignee: Xerox Corp
•
Filing: 1965-06-01
•
Granted: 1970-07-14
•
Expires: 1985-06-01
Abstract
No abstract record available.
Inventors
- 👤 William L Goffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:57
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/06; G03G13/22; G03G17/00; G03G17/10; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08207; Y; Y10; Y10S; Y10S430/00; Y10S430/001; Y10S430/102; Y10S430/138; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-13 | 1974-01-12 | 1974-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-13 | 1978-01-12 | 1978-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-13 | 1982-01-12 | 1982-07-14 | $7700.00 | Window Closed / Lapsed |