Patent US2521036A successfully refreshed from Google Patents.
US2521036A
Expired / Lapsed
US
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Shelf mechanism for refrigerated display cases
Assignee: Individual
•
Filing: 1946-04-15
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Granted: 1950-09-05
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Expires: 1966-04-15
Abstract
No abstract record available.
Inventors
- 👤 Edward F Brill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:02
CPC Classifications
A; A47; A47F; A47F3/00; A47F3/04; A47F3/0482; A47F3/0486; F; F25; F25D; F25D25/00; F25D25/02; F25D25/028; F25D2325/00; F25D2325/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1751317A
Cited
US1929952A
Cited
US1924225A
Cited
US2280133A
Cited
US2257925A
Cited
US2299347A
Cited
US2408154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-04 | 1954-03-06 | 1954-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-04 | 1958-03-06 | 1958-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-04 | 1962-03-06 | 1962-09-05 | $7700.00 | Window Closed / Lapsed |