Patent US3309788A successfully refreshed from Google Patents.
US3309788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for drying fruit and vegetables and other products
Assignee: Individual
•
Filing: 1963-11-19
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Granted: 1967-03-21
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Expires: 1983-11-19
Abstract
No abstract record available.
Inventors
- 👤 Fred F Knipschild
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:43
CPC Classifications
F; F26; F26B; F26B9/00; F26B9/06; F26B9/066; F26B21/00; F26B21/20; F26B21/202; F26B21/206
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
APPARATUS OF THE CHARACTER DESCRIBED COMPRISING AN ELONGATED HOUSING DEFINING A CHAMBER AND HAVING PRODUCT INGRESS AND EGRESS MEANS AT THE OPPOSITE ENDS THEREOF, MEANS IN SAID CHAMBER EXTENDING LONGITUDINALLY AND SPACED FROM THE ENDS THEREOF DIVIDING THE CHAMBER INTO AN UPPER PORTION AND A LOWER PORTION ADAPTED TO RECEIVE PRODUCT TO BE DRIED, REVERSIBLE BLOWER MEANS ASSOCIATED WITH SAID UPPER CHAMBER PORTION FOR CIRCULATING AIR THROUGH SAID CHAMBER IN BOTH DIRECTIONS OF LONGITUDINAL MOVEMENT THROUGH SAID LOWER PORTION, AND MEANS DELIVERING HEATED AIR TO SAID BLOWER MEANS INCLUDING A FURNACE OVERLYING SAID UPPER PORTION OF THE CHAMBER, AND A PAIR OF AIR INLET MEANS COMMUNICATING WITH SAID UPPER CHAMBER PORTION ON OPPOSITE SIDES OF SAID BLOWER MEANS.
Claim 2
Dependent Claim
118 words
APPARATUS OF THE CHARACTER DESCRIBED COMPRISING AN ELONGATED HOUSING DEFINING A CHAMBER AND HAVING PRODUCT INGRESS AND EGRESS MEANS AT THE OPPOSITE ENDS THEREOF, MEANS IN SAID CHAMBER EXTENDING LONGITUDINALLY AND SPACED FROM THE ENDS THEREOF DIVIDING THE CHAMBER INTO AN UPPER PORTION AND A LOWER PORTION ADAPTED TO RECEIVE PRODUCT TO BE DRIED, REVERSIBLE BLOWER MEANS ASSOCIATED WITH SAID UPPER CHAMBER PORTION FOR CIRCULATING AIR THROUGH SAID CHAMBER IN BOTH DIRECTIONS OF LONGITUDINAL MOVEMENT THROUGH SAID LOWER PORTION, AND MEANS DELIVERING HEATED AIR TO SAID BLOWER MEANS INCLUDING A FURNACE OVERLYING SAID UPPER PORTION OF THE CHAMBER, AND A PAIR OF AIR INLET MEANS COMMUNICATING WITH SAID UPPER CHAMBER PORTION ON OPPOSITE SIDES OF SAID BLOWER MEANS.
References Cited (Backward Citations)
US1603103A
Cited
US1887581A
Cited
US2001001A
Cited
US2002170A
Cited
US2340633A
Cited
US2920398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |