US2217015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic process for the preparation of printing cylinders
Assignee: SHELLMAR PRODUCTS Co
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Filing: 1936-07-16
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Granted: 1940-10-08
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Expires: 1956-07-16
Abstract
No abstract record available.
Inventors
- 👤 Gurwick Irving
- 👤 Robert A Jennings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:56
CPC Classifications
B; B41; B41N; B41N1/00; B41N1/16; B41N1/20; C; C25; C25D; C25D7/00; C25D7/04
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) | 1943-10-08 | 1944-04-08 | 1944-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-10-08 | 1948-04-08 | 1948-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-10-08 | 1952-04-08 | 1952-10-08 | $7700.00 | Window Closed / Lapsed |