US2418045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cleaning open hearth checker work and the like
Assignee: Individual
•
Filing: 1943-09-28
•
Granted: 1947-03-25
•
Expires: 1963-09-28
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Neider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:34
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/032; B08B9/0321; B08B9/0323; B08B9/04; B08B9/043; B08B9/0433; F; F27; F27D; F27D25/00; F27D25/001; F27B; F27B3/00; F27B3/10; F27B3/26; F27B3/263
Claims Analysis
Total Claims: 0
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US2324422A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-24 | 1950-09-23 | 1951-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-24 | 1954-09-23 | 1955-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-24 | 1958-09-23 | 1959-03-25 | $7700.00 | Window Closed / Lapsed |