US2936707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color reaction type duplication process
Assignee: Ditto Inc
•
Filing: 1951-06-22
•
Granted: 1960-05-17
•
Expires: 1971-06-22
Abstract
No abstract record available.
Inventors
- 👤 Richard G Maguire
- 👤 Glen W Hedrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:30
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/025; B41M5/0253; Y; Y10; Y10S; Y10S101/00; Y10S101/29
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |