Patent US3452904A successfully refreshed from Google Patents.
US3452904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material handling equipment
Assignee: Individual
•
Filing: 1967-09-19
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Granted: 1969-07-01
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Expires: 1987-09-19
Abstract
No abstract record available.
Inventors
- 👤 Ronald J Ricciardi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:44
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; B65D88/64; B65D88/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB143425A
Cited
US1783423A
Cited
US2192256A
Cited
US2740552A
Cited
US2729362A
Cited
US3353720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |