Patent US3331648A successfully refreshed from Google Patents.
US3331648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating apparatus
Assignee: Motors Liquidation Co
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Filing: 1965-05-28
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Granted: 1967-07-18
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Expires: 1985-05-28
Abstract
No abstract record available.
Inventors
- 👤 Carl F Petkwitz
- 👤 Clifford H Wurtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:19
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/08; F25D23/082; F25D23/087; F25D17/00; F25D17/04; F25D17/042; F25D17/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A CABINET INCLUDING WALLS ENCLOSING A STORAGE SPACE PROVIDED WITH AN ACCESS OPENING WITH SAID WALLS HAVING A PERIPHERAL SURFACE AROUND SAID OPENING, A DOOR FOR CLOSING SAID ACCESS OPENING HAVING ONE SIDE HINGED TO SAID WALLS, SAID DOOR BEING PROVIDED WITH A PERIPHERAL SURFACE, ONE OF SAID PERIPHERAL SURFACES BEING PROVIDED WITH A RESILIENT MAGNETIC SEAL STRIP AND THE OTHER PERIPHERAL SURFACE COMPRISING MAGNETIC MATERIAL COOPERATING WITH SAID MAGNETIC SEAL STRIP TO MAGNETICALLY HOLD THE DOOR CLOSED AND TO ATTRACT THE SEAL STRIP IN MAGNETIC SEALING RELATION, SAID SEAL STRIP HAVING A PORTION THEREOF THAT IS NON-MAGNETIC FOR ASSURING THE UNSEALING OF SAID PORTION OF SAID SEAL STRIP PRIOR TO THE UNSEALING OF THE REMAINDER OF THE STRIP AWAY FROM THE HINGED SIDE TO ALLOW A SLIGHT LEAKAGE PAST THE SEAL STRIP INTO THE STORAGE SPACE UPON AN ATTEMPT TO PULL THE DOOR OPEN.
Claim 2
Dependent Claim
145 words
A CABINET INCLUDING WALLS ENCLOSING A STORAGE SPACE PROVIDED WITH AN ACCESS OPENING WITH SAID WALLS HAVING A PERIPHERAL SURFACE AROUND SAID OPENING, A DOOR FOR CLOSING SAID ACCESS OPENING HAVING ONE SIDE HINGED TO SAID WALLS, SAID DOOR BEING PROVIDED WITH A PERIPHERAL SURFACE, ONE OF SAID PERIPHERAL SURFACES BEING PROVIDED WITH A RESILIENT MAGNETIC SEAL STRIP AND THE OTHER PERIPHERAL SURFACE COMPRISING MAGNETIC MATERIAL COOPERATING WITH SAID MAGNETIC SEAL STRIP TO MAGNETICALLY HOLD THE DOOR CLOSED AND TO ATTRACT THE SEAL STRIP IN MAGNETIC SEALING RELATION, SAID SEAL STRIP HAVING A PORTION THEREOF THAT IS NON-MAGNETIC FOR ASSURING THE UNSEALING OF SAID PORTION OF SAID SEAL STRIP PRIOR TO THE UNSEALING OF THE REMAINDER OF THE STRIP AWAY FROM THE HINGED SIDE TO ALLOW A SLIGHT LEAKAGE PAST THE SEAL STRIP INTO THE STORAGE SPACE UPON AN ATTEMPT TO PULL THE DOOR OPEN.
References Cited (Backward Citations)
US2659114A
Cited
US2659115A
Cited
US2659118A
Cited
US2859496A
Cited
US3167931A
Cited
US3201833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |