US3364023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formation of silver images from ultraviolet-light-induced benzoindolinospiropyran dye images
Assignee: Appvion LLC
•
Filing: 1964-02-04
•
Granted: 1968-01-16
•
Expires: 1984-02-04
Abstract
No abstract record available.
Inventors
- 👤 William J Becker
- 👤 Peter L Foris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:36
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/56; G03C1/00; G03C1/685; Y; Y10; Y10S; Y10S430/00; Y10S430/163
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3152903A
Cited
US3212898A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |