Patent US3206946A successfully refreshed from Google Patents.
US3206946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liner for refrigeration units
Assignee: MID CAL PLASTICS Inc
•
Filing: 1963-12-06
•
Granted: 1965-09-21
•
Expires: 1983-12-06
Abstract
No abstract record available.
Inventors
- 👤 William R Lindersmith
- 👤 Earl V Hopkins
- 👤 Schaffer Stephen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:28
CPC Classifications
F; F25; F25D; F25D17/00; F25D17/005; F25D17/04; F25D17/06; F25D17/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN A REFRIGERATED COMPARTMENT, INCLUDING A PLENUM BETWEEN THE ROOL AND CEILING WHEREIN COLD AIR IS FORCED VENTILATED, THE COMBINATION COMPRISING: A PLURALITY OF VENTS SPACED ALONG THE UPPER PORTION OF SAID COMPARTMENT ADJACENT TO THE INTERSECTION OF AT LEAST SOME OF THE WALLS AND CEILING AND IN FLUID COMMUNICATION WITH SAID PLENUM; WALL PANELS FOR MOUNTING AGAINST THE WALLS OF THE COMPARTMENT, SAID PANELS EACH COMPRISING A BACKING FOR SECURING AGAINST THE COMPARTMENT WALLS, A CORRUGATED FACING ATTACHED TO SAID BACKING, CORRUGATIONS OF SAID FACING FORMING A SERIES OF SUBSTANTIALLY VERTICAL DUCTS EXTENDING OUTWARDLY FROM SAID BACKING WITH THE DUCT FACES SUBSTANTIALLY PARALLEL TO SAID BACKING AND THE DUCT SIDES PARALLEL TO EACH OTHER AND FORMED IN A UNIFORM, SMOOTH
Claim 2
Dependent Claim
121 words
IN A REFRIGERATED COMPARTMENT, INCLUDING A PLENUM BETWEEN THE ROOL AND CEILING WHEREIN COLD AIR IS FORCED VENTILATED, THE COMBINATION COMPRISING: A PLURALITY OF VENTS SPACED ALONG THE UPPER PORTION OF SAID COMPARTMENT ADJACENT TO THE INTERSECTION OF AT LEAST SOME OF THE WALLS AND CEILING AND IN FLUID COMMUNICATION WITH SAID PLENUM; WALL PANELS FOR MOUNTING AGAINST THE WALLS OF THE COMPARTMENT, SAID PANELS EACH COMPRISING A BACKING FOR SECURING AGAINST THE COMPARTMENT WALLS, A CORRUGATED FACING ATTACHED TO SAID BACKING, CORRUGATIONS OF SAID FACING FORMING A SERIES OF SUBSTANTIALLY VERTICAL DUCTS EXTENDING OUTWARDLY FROM SAID BACKING WITH THE DUCT FACES SUBSTANTIALLY PARALLEL TO SAID BACKING AND THE DUCT SIDES PARALLEL TO EACH OTHER AND FORMED IN A UNIFORM, SMOOTH
References Cited (Backward Citations)
US1256162A
Cited
US2184819A
Cited
US2305141A
Cited
US2517699A
Cited
US2641449A
Cited
US2740266A
Cited
US2791463A
Cited
US2882701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |