US3101778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic rotor fabrication
Assignee: Combustion Engineering Inc
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Filing: 1960-05-13
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Granted: 1963-08-27
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Expires: 1980-05-13
Abstract
No abstract record available.
Inventors
- 👤 Noel D Hazzard
- 👤 John A Cunningham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:33
CPC Classifications
F; F28; F28D; F28D19/00; F28D19/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A HEAT ABSORBENT ELEMENT MASS FOR A ROTARY REGENERATIVE HEAT EXCHANGER HAVING A ROTOR CARRYING THE ELEMENT MASS ALTERNATELY BETWEEN A HEATING FLUID AND A
Claim 2
Dependent Claim
25 words
A HEAT ABSORBENT ELEMENT MASS FOR A ROTARY REGENERATIVE HEAT EXCHANGER HAVING A ROTOR CARRYING THE ELEMENT MASS ALTERNATELY BETWEEN A HEATING FLUID AND A
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |