US3050063A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pinless baby diaper
Assignee: Individual
•
Filing: 1957-12-18
•
Granted: 1962-08-21
•
Expires: 1977-12-18
Abstract
No abstract record available.
Inventors
- 👤 Mildred E Margraf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:56
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/49; A61F13/49003; A61F13/49004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2119610A
Cited
US2607348A
Cited
US2523989A
Cited
US2568305A
Cited
US2577398A
Cited
US2630120A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |