US2355949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making composite printing plates
Assignee: Individual
•
Filing: 1941-08-29
•
Granted: 1944-08-15
•
Expires: 1961-08-29
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Boutwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:01
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B41; B41N; B41N6/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-08-15 | 1948-02-14 | 1948-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-08-15 | 1952-02-14 | 1952-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-08-15 | 1956-02-14 | 1956-08-15 | $7700.00 | Window Closed / Lapsed |