US3164137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shielding of tube support for furnace tube panels
Assignee: Combustion Engineering Inc
•
Filing: 1962-07-05
•
Granted: 1965-01-05
•
Expires: 1982-07-05
Abstract
No abstract record available.
Inventors
- 👤 Liessenberg Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:33
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/20; F22B37/202; F22B37/203
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB536138A
Cited
US2859737A
Cited
US2834327A
Cited
US2923279A
Cited
US2884911A
Cited
GB885315A
Cited
GB883125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-05 | 1968-07-06 | 1969-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-05 | 1972-07-06 | 1973-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-05 | 1976-07-06 | 1977-01-05 | $7700.00 | Window Closed / Lapsed |