Patent US4537468A successfully refreshed from Google Patents.
Patent US3238640A successfully refreshed from Google Patents.
US3238640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grain dryer
Assignee: Hart Carter Co
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Filing: 1962-09-04
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Granted: 1966-03-08
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Expires: 1982-09-04
Abstract
No abstract record available.
Inventors
- 👤 Fry Joseph Dale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:00
CPC Classifications
F; F26; F26B; F26B19/00; F26B19/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
214 words
IN A DRYER FOR GAINS AND THE LIKE, A SUPPORTING FRAME, TWO OUTER UPRIGHT SCREEN WALL SUPPORTED ON THE FRAME, TWO INNER SPACED APART UPRIGHT SCREEN WALLS ON THE FRAME, ONE OF WHICH IS ADJACENT TO BUT SPACED FROM ONE OF SAID OUTER WALLS AND THE OTHER OF WHICH IS ADJACENT TO BUT SPACED FROM THE OUTER WALL TO THEREBY FORM DOWN-FLOW PASSAGES FOR THE MATERIAL, A ROOF COVERING THE SPACE BETWEEN SAID INNER WALLS, A FLOOR BENEATH SAID SPACE, UPRIGHT END WALLS ACROSS TNE ENDS OF SAID SCREEN WALLS CLOSING THE ENDS OF SAID SPACE AND THE PASSAGES BETWEEN THE INNER AND OUTER WALLS, MEANS ABOVE AND SUPPORTED ON SAID END WALLS FOR DISTRIBUTING THE MATERIAL TO SAID PASSAGES, AN AGITATOR IN THE BOTTOM OF EACH PASSAGE, AN AUGER CASING LOCATED AT THE LOWER END OF EACH PASSAGE COMPRISING A SLOPING FLOOR PORTION MOUNTED ON SAID FRAME BETWEEN SAID END WALLS AND EXTENDING DOWNWARDLY AND OUTWARDLY IN A TRANSVERSE DIRECTION FROM THE LOWER END OF THE ADJACENT INNER SCREEN WALL, A DEPENDING PLATE FIXED ALONG ITS UPPER EDGE TO THE LOWER SURFACE OF SAID FLOOR PORTION, A REMOVABLE SHEET ADAPTED TO ENCLOSE THE PASSAGES BETWEEN THE LOWER EDGE OF SAID FLOOR PORTION AND THE LOWER EDGE OF THE ASSOCIATED OUTER SCREEN WALL AND
Claim 2
Dependent Claim
214 words
IN A DRYER FOR GAINS AND THE LIKE, A SUPPORTING FRAME, TWO OUTER UPRIGHT SCREEN WALL SUPPORTED ON THE FRAME, TWO INNER SPACED APART UPRIGHT SCREEN WALLS ON THE FRAME, ONE OF WHICH IS ADJACENT TO BUT SPACED FROM ONE OF SAID OUTER WALLS AND THE OTHER OF WHICH IS ADJACENT TO BUT SPACED FROM THE OUTER WALL TO THEREBY FORM DOWN-FLOW PASSAGES FOR THE MATERIAL, A ROOF COVERING THE SPACE BETWEEN SAID INNER WALLS, A FLOOR BENEATH SAID SPACE, UPRIGHT END WALLS ACROSS TNE ENDS OF SAID SCREEN WALLS CLOSING THE ENDS OF SAID SPACE AND THE PASSAGES BETWEEN THE INNER AND OUTER WALLS, MEANS ABOVE AND SUPPORTED ON SAID END WALLS FOR DISTRIBUTING THE MATERIAL TO SAID PASSAGES, AN AGITATOR IN THE BOTTOM OF EACH PASSAGE, AN AUGER CASING LOCATED AT THE LOWER END OF EACH PASSAGE COMPRISING A SLOPING FLOOR PORTION MOUNTED ON SAID FRAME BETWEEN SAID END WALLS AND EXTENDING DOWNWARDLY AND OUTWARDLY IN A TRANSVERSE DIRECTION FROM THE LOWER END OF THE ADJACENT INNER SCREEN WALL, A DEPENDING PLATE FIXED ALONG ITS UPPER EDGE TO THE LOWER SURFACE OF SAID FLOOR PORTION, A REMOVABLE SHEET ADAPTED TO ENCLOSE THE PASSAGES BETWEEN THE LOWER EDGE OF SAID FLOOR PORTION AND THE LOWER EDGE OF THE ASSOCIATED OUTER SCREEN WALL AND
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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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |