Patent US3507399A successfully refreshed from Google Patents.
US3507399A
Expired / Lapsed
US
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Shelf structure which may be quickly assembled or disassembled from standardized parts
Assignee: JORGE C GRUENBERG
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Filing: 1967-02-24
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Granted: 1970-04-21
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Expires: 1987-02-24
Abstract
No abstract record available.
Inventors
- 👤 Jorge C Gruenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:54
CPC Classifications
A; A47; A47B; A47B96/00; A47B96/14; A47B96/145; A47B47/00; A47B47/02; A47B47/021; A47B47/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2654487A
Cited
US2738883A
Cited
US2833421A
Cited
US3031087A
Cited
US2991888A
Cited
US3104627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-20 | 1973-10-20 | 1974-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-20 | 1977-10-20 | 1978-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-20 | 1981-10-20 | 1982-04-21 | $7700.00 | Window Closed / Lapsed |