US3090211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating shelf structure
Assignee: Individual
•
Filing: 1961-02-27
•
Granted: 1963-05-21
•
Expires: 1981-02-27
Abstract
No abstract record available.
Inventors
- 👤 Louis F Barroero
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:22
CPC Classifications
F; F25; F25D; F25D25/00; F25D25/02; F25D25/028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A REFRIGERATOR SHELF STRUCTURE FOR USE WITH A DUCT AIR SYSTEM, SAID SHELF STRUCTURE HAVING TOP AND BOTTOM SURFACES AND A PERIPHERAL EDGE, AND COMPRISING: MEANS DEFINING UPPER AND LOWER AIR COMPARTMENTS SEPARATED BY AN IMPERFORATE MEMBER, FIRST AND SECOND OPENINGS BEING FORMED IN THE PERIPHERAL EDGE AND EACH OPENING BEING SUBSTANTIALLY CENTERED RELATIVE TO TOP AND BOTTOM SURFACES, AND MEANS COMMUNICATING SAID FIRST OPENING WITH SAID UPPER COMPARTMENT AND SAID SECOND OPENING WITH SAID LOWER COMPARTMENT.
Claim 2
Dependent Claim
77 words
A REFRIGERATOR SHELF STRUCTURE FOR USE WITH A DUCT AIR SYSTEM, SAID SHELF STRUCTURE HAVING TOP AND BOTTOM SURFACES AND A PERIPHERAL EDGE, AND COMPRISING: MEANS DEFINING UPPER AND LOWER AIR COMPARTMENTS SEPARATED BY AN IMPERFORATE MEMBER, FIRST AND SECOND OPENINGS BEING FORMED IN THE PERIPHERAL EDGE AND EACH OPENING BEING SUBSTANTIALLY CENTERED RELATIVE TO TOP AND BOTTOM SURFACES, AND MEANS COMMUNICATING SAID FIRST OPENING WITH SAID UPPER COMPARTMENT AND SAID SECOND OPENING WITH SAID LOWER COMPARTMENT.
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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |