US3521744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced shipping container for bathtubs
Assignee: Twin Cities Container Corp
•
Filing: 1969-04-16
•
Granted: 1970-07-28
•
Expires: 1989-04-16
Abstract
No abstract record available.
Inventors
- 👤 Richard K Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:45
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/64; B65D5/00; B65D5/42; B65D5/44; B65D5/441; B65D5/445; B65D5/446; B65D2585/00; B65D2585/64; B65D2585/641; B65D2585/642; B65D2585/644; B65D2585/68; B65D2585/6802; B65D2585/6805; B65D2585/681
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1991071A
Cited
US2262267A
Cited
US2346003A
Cited
US3167233A
Cited
US3289825A
Cited
US3386567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |