US2939589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steel shelving
Assignee: Hirsh Manufacturing Co SA Co
•
Filing: 1957-01-11
•
Granted: 1960-06-07
•
Expires: 1977-01-11
Abstract
No abstract record available.
Inventors
- 👤 Milton E Handler
- 👤 Ralph J Bellon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:27
CPC Classifications
F; F16; F16B; F16B12/00; F16B12/44; F16B12/50; A; A47; A47B; A47B57/00; A47B57/06; A47B57/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2172687A
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US987143A
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US1024420A
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US1667913A
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US1854777A
Cited
US1984473A
Cited
US2304481A
Cited
US2677470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |