US3311040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-developing apparatus for positive picture copiers
Assignee: Minolta Co Ltd
•
Filing: 1964-08-28
•
Granted: 1967-03-28
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Expires: 1984-08-28
Abstract
No abstract record available.
Inventors
- 👤 Ishikawa Toshio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:04
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3177793A
Cited
US3086100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |