Patent US3528111A successfully refreshed from Google Patents.
US3528111A
Expired / Lapsed
US
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Device for holding and positioning a baby within a bathtub
Assignee: DON W CHOU
•
Filing: 1968-03-04
•
Granted: 1970-09-15
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Expires: 1988-03-04
Abstract
No abstract record available.
Inventors
- 👤 Don W Chou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:55
CPC Classifications
A; A47; A47K; A47K3/00; A47K3/12; A47K3/125; A47K3/127; A47K3/02; A47K3/03; A47K3/034
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |