US2837219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shelving device
Assignee: Hirsh Manufacturing Co SA Co
•
Filing: 1954-08-13
•
Granted: 1958-06-03
•
Expires: 1974-08-13
Abstract
No abstract record available.
Inventors
- 👤 Irwin J Ferdinand
- 👤 Ralph J Bellon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:44
CPC Classifications
A; A47; A47B; A47B57/00; A47B57/30; A47B57/48; A47B57/485; A47B96/00; A47B96/02; A47B96/027; A47B96/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US569640A
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US1223710A
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US1389587A
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US1599653A
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US2056078A
Cited
US2136109A
Cited
US2191701A
Cited
US2681786A
Cited
GB678874A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |