Patent US3371316A successfully refreshed from Google Patents.
Patent US2582437A successfully refreshed from Google Patents.
US2582437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic testing device for steel ropes
Assignee: MAURYCY BROKMAN
•
Filing: 1948-05-08
•
Granted: 1952-01-15
•
Expires: 1968-05-08
Abstract
No abstract record available.
Inventors
- 👤 Jezewski Mieczyslaw
- 👤 Szklarski Ludger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:34
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/72; G01N27/82; G01N27/90; G01N27/9006; D; D07; D07B; D07B1/00; D07B1/14; D07B1/145
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |