Patent US5236741A successfully refreshed from Google Patents.
Patent US3533502A successfully refreshed from Google Patents.
US3533502A
Expired / Lapsed
US
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Shipping rack
Assignee: Pilkington North America Inc
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Filing: 1968-11-20
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Granted: 1970-10-13
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Expires: 1988-11-20
Abstract
No abstract record available.
Inventors
- 👤 Ralph C Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:17
CPC Classifications
B; B65; B65G; B65G49/00; B65G49/05; B65G49/06; B65G49/062; A; A47; A47B; A47B45/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |