US2421089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerator shelf
Assignee: Lanteris Space LLC
•
Filing: 1943-12-31
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Granted: 1947-05-27
•
Expires: 1963-12-31
Abstract
No abstract record available.
Inventors
- 👤 Helen E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:04
CPC Classifications
F; F25; F25D; F25D25/00; F25D25/02; F25D25/021; F25D2325/00; F25D2325/021; F25D2325/023; Y; Y10; Y10S; Y10S62/00; Y10S62/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1889218A
Cited
US2065116A
Cited
US2118213A
Cited
US2126916A
Cited
US2093277A
Cited
US2241053A
Cited
US2292865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-26 | 1950-11-25 | 1951-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-26 | 1954-11-25 | 1955-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-26 | 1958-11-25 | 1959-05-27 | $7700.00 | Window Closed / Lapsed |