US2641205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling wall for heated chambers
Assignee: Individual
•
Filing: 1947-10-23
•
Granted: 1953-06-09
•
Expires: 1967-10-23
Abstract
No abstract record available.
Inventors
- 👤 Dolezal Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:08
CPC Classifications
F; F23; F23M; F23M5/00; F23M5/08; F23M5/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL15231C
Cited
US539730A
Cited
USRE17137E
Cited
US1701287A
Cited
US1622431A
Cited
US1688321A
Cited
US1674422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |