US2812549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making flat printing plates of thermo-active material
Assignee: C S W PLASTIC TYPES Inc
•
Filing: 1954-08-16
•
Granted: 1957-11-12
•
Expires: 1974-08-16
Abstract
No abstract record available.
Inventors
- 👤 Ricbard T Wall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:22
CPC Classifications
B; B41; B41C; B41C3/00; B41C3/06; B29; B29C; B29C43/00; Y; Y10; Y10S; Y10S264/00; Y10S264/66
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) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |