Patent US2533650A successfully refreshed from Google Patents.
US2533650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making half-tone negatives
Assignee: Konica Minolta Graphic Imaging USA Inc
•
Filing: 1944-08-23
•
Granted: 1950-12-12
•
Expires: 1964-08-23
Abstract
No abstract record available.
Inventors
- 👤 Francis E Wattier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:21
CPC Classifications
G; G03; G03F; G03F5/00; G03F5/02; G03F5/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE312513C
Cited
US532326A
Cited
US802598A
Cited
US1167505A
Cited
US1289129A
Cited
US1832656A
Cited
US1575408A
Cited
US1732051A
Cited
US2100346A
Cited
US2044184A
Cited
US2060640A
Cited
US2062401A
Cited
US2095909A
Cited
US2115233A
Cited
US2123830A
Cited
US2126479A
Cited
US2145427A
Cited
US2306936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |