US3559264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regenerator spacer manufacture
Assignee: Motors Liquidation Co
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Filing: 1968-11-25
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Granted: 1971-02-02
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Expires: 1988-11-25
Abstract
Abstract A RADIAL-FLOW ROTARY REGENERATOR MATRIX INCLUDES AN OUTER SEALING RING OR OUTER RIM. A RADIALLY YIELDING STRUCTURE DISPOSED BETWEEN THIS SEALING RING OR RIM AND THE HEAT TRANSFER BODY OF THE MATRIX IS MADE UP OF TWO INTERDIGITATED CORRUGATED STRIPS WHICH MAY SLIDE RADIALLY ONE WITHIN THE OTHER.
Inventors
- 👤 Joseph W Bracken Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:03
CPC Classifications
F; F28; F28D; F28D19/00; F28D19/04; F28D19/041; F28D19/042; B; B21; B21D; B21D53/00; B21D53/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49357; Y10T29/49799
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |