US2591042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for electrolytic treatment of spaced metallic elements
Assignee: Conmar Products Corp
•
Filing: 1947-01-08
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Granted: 1952-04-01
•
Expires: 1967-01-08
Abstract
No abstract record available.
Inventors
- 👤 Berman Hans
- 👤 Robert I Prupis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:14
CPC Classifications
C; C25; C25D; C25D7/00; C25D7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US936472A
Cited
US1034219A
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US1739657A
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GB483503A
Cited
US2264324A
Cited
US2317242A
Cited
US2326707A
Cited
US2362228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |