US2794630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for heat treating strip material
Assignee: Selas Corp of America
•
Filing: 1951-12-12
•
Granted: 1957-06-04
•
Expires: 1971-12-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles A Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:37
CPC Classifications
C; C23; C23C; C23C8/00; C23C8/06; C23C8/08; C23C8/10; C23C8/16; C23C8/18; C21; C21D; C21D9/00; C21D9/52; C21D9/54; C21D9/56; C21D9/561
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2546538A
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US2594876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |