Patent US3479975A successfully refreshed from Google Patents.
US3479975A
Expired / Lapsed
US
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Lightweight steel shelving
Assignee: Hirsh Co
•
Filing: 1967-09-18
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Granted: 1969-11-25
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Expires: 1987-09-18
Abstract
No abstract record available.
Inventors
- 👤 Irwin J Ferdinand
- 👤 Milton E Handler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:32
CPC Classifications
A; A47; A47B; A47B57/00; A47B57/06; A47B57/20; F; F16; F16B; F16B2200/00; F16B2200/67; Y; Y10; Y10T; Y10T403/00; Y10T403/44; Y10T403/75
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1014630A
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US1506442A
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US1784572A
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US2195611A
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GB612120A
Cited
US3255722A
Cited
US3180663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |