US2602653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bright strip annealing apparatus
Assignee: Electric Furnace Co
•
Filing: 1948-07-06
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Granted: 1952-07-08
•
Expires: 1968-07-06
Abstract
No abstract record available.
Inventors
- 👤 Frank T Cope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:19
CPC Classifications
C; 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)
US499012A
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US981471A
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US1784848A
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DE643743C
Cited
US1956401A
Cited
US2057518A
Cited
US2060634A
Cited
US2162692A
Cited
US2483345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |