US3347145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air distribution structure for refrigerated case
Assignee: Doosan Bobcat North America Inc
•
Filing: 1965-03-23
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Granted: 1967-10-17
•
Expires: 1985-03-23
Abstract
No abstract record available.
Inventors
- 👤 Melvin W Steelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:11
CPC Classifications
A; A47; A47F; A47F3/00; A47F3/04; A47F3/0439; A47F3/0443
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN A REFRIGERATED MERCHANDISE DISPLAY CASE HAVING A PLURALITY OF HOLLOW VERTICAL LATERALLY SPACED POSTS CONSTITUTING PASSAGES FOR REFRIGERATING AIR BETWEEN THE TOP AND BOTTOM PORTIONS OF THE CASE, AT LEAST ONE SHELF SUPPORTED ON SAID POSTS FORWARDLY THEREOF, EACH PAIR OF ADJACENT POSTS DEFINING A DOORWAY THEREBETWEEN, A DOOR FOR EACH DOORWAY, AND MEANS FOR EFFECTING FLOW OF REFRIGERATING AIR THROUGH THE POSTS, THE IMPROVEMENT COMPRISING AT LEAST ONE APERTURE IN EACH OF AT LEAST ONE PAIR OF THE POSTS LOCATED ABOVE THE LEVEL OF A SHELF AND FACING IN THE DIRECTION OF THE OTHER POST OF SAID ONE PAIR PERMITTING A PORTION ONLY OF THE AIR FLOWING IN EACH APERTURED POST TO ISSUE OUTWARDLY THEREFROM IN A GENERALLY HORIZONTAL STREAM OP-
Claim 2
Dependent Claim
123 words
IN A REFRIGERATED MERCHANDISE DISPLAY CASE HAVING A PLURALITY OF HOLLOW VERTICAL LATERALLY SPACED POSTS CONSTITUTING PASSAGES FOR REFRIGERATING AIR BETWEEN THE TOP AND BOTTOM PORTIONS OF THE CASE, AT LEAST ONE SHELF SUPPORTED ON SAID POSTS FORWARDLY THEREOF, EACH PAIR OF ADJACENT POSTS DEFINING A DOORWAY THEREBETWEEN, A DOOR FOR EACH DOORWAY, AND MEANS FOR EFFECTING FLOW OF REFRIGERATING AIR THROUGH THE POSTS, THE IMPROVEMENT COMPRISING AT LEAST ONE APERTURE IN EACH OF AT LEAST ONE PAIR OF THE POSTS LOCATED ABOVE THE LEVEL OF A SHELF AND FACING IN THE DIRECTION OF THE OTHER POST OF SAID ONE PAIR PERMITTING A PORTION ONLY OF THE AIR FLOWING IN EACH APERTURED POST TO ISSUE OUTWARDLY THEREFROM IN A GENERALLY HORIZONTAL STREAM OP-
References Cited (Backward Citations)
US3123988A
Cited
US2607201A
Cited
US2747495A
Cited
US2788641A
Cited
US2911799A
Cited
US3132579A
Cited
US3063255A
Cited
US3255686A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |