US3365908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display case
Assignee: Newfrey LLC
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Filing: 1966-09-15
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Granted: 1968-01-30
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Expires: 1986-09-15
Abstract
No abstract record available.
Inventors
- 👤 Malcolm D Macmaster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:39
CPC Classifications
A; A47; A47F; A47F3/00; A47F3/04; A47F3/0439; A47F3/0443; A47F3/0447; A47F2003/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN A REFRIGERATED DISPLAY CASE OF THE TYPE WHICH HAS A DISPLAY SPACE THEREIN WITH AN ACCESS OPENING IN THE FRONT OF THE CASE AND MEANS FOR MAINTAINING PRODUCTS WITHIN SAID DISPLAY SPACE AT DESIRED TEMPERATURE AND FOR ESTABLISHING AN AIR CURTAIN ACROSS SAID ACCESS OPENING, INCLUDING AN AIR INLET LOCATED ADJACENT ONE SIDE OF SAID ACCESS OPENING, MEANS FOR CIRCULATING AT LEAST A PORTION OF THE AIR FROM SAID AIR CURTAIN THROUGH SAID INLET AND ABOUT THE DISPLAY SPACE THROUGH A REFRIGERATED AIR DUCT IN HEAT EXCHANGING RELATION WITH A SURFACE EXPOSED TO THE INTERIOR OF SAID DISPLAY SPACE TO AN AIR OUTLET LOCATED ADJACENT THE OPPOSITE SIDE OF SAID ACCESS OPENING, AND A REFRIGERANT EVAPORATOR
Claim 2
Dependent Claim
117 words
IN A REFRIGERATED DISPLAY CASE OF THE TYPE WHICH HAS A DISPLAY SPACE THEREIN WITH AN ACCESS OPENING IN THE FRONT OF THE CASE AND MEANS FOR MAINTAINING PRODUCTS WITHIN SAID DISPLAY SPACE AT DESIRED TEMPERATURE AND FOR ESTABLISHING AN AIR CURTAIN ACROSS SAID ACCESS OPENING, INCLUDING AN AIR INLET LOCATED ADJACENT ONE SIDE OF SAID ACCESS OPENING, MEANS FOR CIRCULATING AT LEAST A PORTION OF THE AIR FROM SAID AIR CURTAIN THROUGH SAID INLET AND ABOUT THE DISPLAY SPACE THROUGH A REFRIGERATED AIR DUCT IN HEAT EXCHANGING RELATION WITH A SURFACE EXPOSED TO THE INTERIOR OF SAID DISPLAY SPACE TO AN AIR OUTLET LOCATED ADJACENT THE OPPOSITE SIDE OF SAID ACCESS OPENING, AND A REFRIGERANT EVAPORATOR
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) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |