Patent US150846A successfully refreshed from Google Patents.
Patent US5455962A successfully refreshed from Google Patents.
Patent US2045392A successfully refreshed from Google Patents.
US2045392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Annealing steel and the like
Assignee: Superior Steel Corp
•
Filing: 1936-02-13
•
Granted: 1936-06-23
•
Expires: 1956-02-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph C Kientz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:53
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/52; C21D9/54; C21D9/56; C21D9/561
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1939-06-23 | 1939-12-23 | 1940-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-06-23 | 1943-12-23 | 1944-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-06-23 | 1947-12-23 | 1948-06-23 | $7700.00 | Window Closed / Lapsed |