Patent US2333172A successfully refreshed from Google Patents.
US2333172A
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US
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Intaglio printing machine
Assignee: Interchemical Corp
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Filing: 1938-05-07
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Granted: 1943-11-02
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Expires: 1958-05-07
Abstract
No abstract record available.
Inventors
- 👤 William F Grupe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:07
CPC Classifications
B; B41; B41F; B41F13/00; B41F13/08; B41F13/24; B41F13/34; B41F13/36; B41F9/00; B41F9/06; B41F9/061
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) | 1946-11-01 | 1947-05-03 | 1947-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-11-01 | 1951-05-03 | 1951-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-11-01 | 1955-05-03 | 1955-11-02 | $7700.00 | Window Closed / Lapsed |