Patent US3242973A successfully refreshed from Google Patents.
US3242973A
Expired / Lapsed
US
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Heat exchange apparatus
Assignee: Dunlop Rubber Co Ltd
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Filing: 1964-05-13
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Granted: 1966-03-29
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Expires: 1984-05-13
Abstract
No abstract record available.
Inventors
- 👤 Neale Albert Edward Toney
- 👤 Coldfield Sutton
- 👤 Gurney William Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:24
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/02; B29C35/0244; B29C35/025; F; F28; F28C; F28C3/00; F28C3/10; F28C3/12; F28C3/16; B29C48/00; B29C48/03; B29C48/07; B29C48/08; B29K; B29K2021/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
77 words
A METHOD FOR THE REMOVAL OF MOISTURE FROM AN ARTICLE WHICH COMPRISES ESTABLISHING A BED OF PARTICLES OF A SOLID PYROPHOSPHATE OF A METAL WHICH IS INSOLUBLE IN WATER, PASSING A FLUIDIZING MEDIUM SELECTED FROM THE GROUP CONSISTING OF A GAS AND A VAPOR THROUGH THE BED OF PARTICLES TO MAINTAIN THE PARTICLES IN FLUID SUSPENSION, HEATING THE PARTICLES TO AN ELEVATED TEMPERATURE AND IMMERSING THE ARTICLE IN THE BED OF PARTICLES UNTIL THE MOISTURE IS REMOVED.
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |