US3493228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sit-up trainer for babies
Assignee: JUDY L HICKS
•
Filing: 1967-10-03
•
Granted: 1970-02-03
•
Expires: 1987-10-03
Abstract
No abstract record available.
Inventors
- 👤 Judy L Hicks
- 👤 Robert Theiler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:21
CPC Classifications
A; A47; A47D; A47D13/00; A47D13/08; Y; Y10; Y10T; Y10T428/00; Y10T428/21; Y10T428/218
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US369319A
Cited
US1468464A
Cited
US1532970A
Cited
US2327168A
Cited
US2562080A
Cited
US3110532A
Cited
US3353197A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |