Patent US2112416A successfully refreshed from Google Patents.
US2112416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Type intaglio engraving plates and method for their production
Assignee: Individual
•
Filing: 1937-02-17
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Granted: 1938-03-29
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Expires: 1957-02-17
Abstract
No abstract record available.
Inventors
- 👤 Dewberry Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:46
CPC Classifications
G; G03; G03F; G03F1/00; G03F1/92; B; B41; B41M; B41M7/00; B41M7/02; G03F5/00; G03F5/20; G03F7/00; G03F7/20; G03F7/2002
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) | 1941-03-28 | 1941-09-27 | 1942-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-03-28 | 1945-09-27 | 1946-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-03-28 | 1949-09-27 | 1950-03-29 | $7700.00 | Window Closed / Lapsed |