Patent US2848209A successfully refreshed from Google Patents.
US2848209A
Expired / Lapsed
US
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Dehydrating apparatus
Assignee: Individual
•
Filing: 1954-04-16
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Granted: 1958-08-19
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Expires: 1974-04-16
Abstract
No abstract record available.
Inventors
- 👤 Charles E Compton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:20
CPC Classifications
F; F26; F26B; F26B11/00; F26B11/02; F26B11/04; F26B11/0445; F26B11/045; C; C04; C04B; C04B11/00; C04B11/02; C04B11/028; C04B11/0285
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
DEHYDRATING APPARATUS COMPRISING A CLOSED DRUM WITHIN WHICH GYPSUM OR THE LIKE TO BE DEHYDRATED IS ADAPTED TO BE DISPOSED, A TUBE WITHIN THE DRUM, AN ANNULAR ACCORDION-LIKE STRUCTURE DISPOSED ABOUT THE TUBE AND FORMING ALTERNATE INTERNAL POCKETS FOR HEATING MEDIUM AND EXTERNAL POCKETS FOR THE GYPSUM OR THE LIKE, THE INTERNAL POCKETS BEING IN COMMUNICATION WITH THE INTERIOR OF THE TUBE, MEANS FOR INTRODUCING HEATING MEDIUM INTO THE TUBE AND MEANS CONNECTED WITH THE ANNULAR ACCORDIONLIKE STRUCTURE OF THE OUTER ENDS OF THE INTERNAL POCKETS RECEIVING AND CONVEYING AWAY THE HEATING MEDIUM.
Claim 2
Dependent Claim
93 words
DEHYDRATING APPARATUS COMPRISING A CLOSED DRUM WITHIN WHICH GYPSUM OR THE LIKE TO BE DEHYDRATED IS ADAPTED TO BE DISPOSED, A TUBE WITHIN THE DRUM, AN ANNULAR ACCORDION-LIKE STRUCTURE DISPOSED ABOUT THE TUBE AND FORMING ALTERNATE INTERNAL POCKETS FOR HEATING MEDIUM AND EXTERNAL POCKETS FOR THE GYPSUM OR THE LIKE, THE INTERNAL POCKETS BEING IN COMMUNICATION WITH THE INTERIOR OF THE TUBE, MEANS FOR INTRODUCING HEATING MEDIUM INTO THE TUBE AND MEANS CONNECTED WITH THE ANNULAR ACCORDIONLIKE STRUCTURE OF THE OUTER ENDS OF THE INTERNAL POCKETS RECEIVING AND CONVEYING AWAY THE HEATING MEDIUM.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |