US2824013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration package
Assignee: Refrigeration Package Spacers Inc
•
Filing: 1953-08-17
•
Granted: 1958-02-18
•
Expires: 1973-08-17
Abstract
No abstract record available.
Inventors
- 👤 Murray J Lang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:40
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/18; B65D63/00; B65D63/02; B65D79/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1983590A
Cited
US2105734A
Cited
US2183876A
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US2196080A
Cited
US2224189A
Cited
US2275458A
Cited
US2490072A
Cited
US2559101A
Cited
US2470465A
Cited
US2675123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-17 | 1961-08-19 | 1962-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-17 | 1965-08-19 | 1966-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-17 | 1969-08-19 | 1970-02-18 | $7700.00 | Window Closed / Lapsed |