US3163153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waste heat recovery apparatus with integral fired heater
Assignee: Foster Wheeler Inc
•
Filing: 1962-03-30
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Granted: 1964-12-29
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Expires: 1982-03-30
Abstract
No abstract record available.
Inventors
- 👤 John J Griffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:23
CPC Classifications
F; F28; F28D; F28D21/00; F28D21/0001; F28D21/0003; F28D21/001; F22; F22B; F22B1/00; F22B1/02; F22B1/18; F22B1/1861; F22B21/00; F22B21/22; F22B21/24; F22B21/34; F24; F24H; F24H1/00; F24H1/22; F24H1/40; F24H1/41; F28D7/00; F28D7/0066; F28D7/0075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2147609A
Cited
US2336833A
Cited
US2361812A
Cited
GB774799A
Cited
US2825311A
Cited
US2869519A
Cited
FR1228730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-29 | 1968-06-29 | 1968-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-29 | 1972-06-29 | 1972-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-29 | 1976-06-29 | 1976-12-29 | $7700.00 | Window Closed / Lapsed |