US2649859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable diaper
Assignee: Individual
•
Filing: 1951-02-10
•
Granted: 1953-08-25
•
Expires: 1971-02-10
Abstract
No abstract record available.
Inventors
- 👤 William A Hermanson
- 👤 Gerald I Hermanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:27
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/49; A61F13/494; A61F13/49406; A61F13/15203; A61F13/15211; A61F13/51; A61F13/511; A61F13/51121; A61F13/513; A61F13/515; A61F13/53; A61F13/531; A61F13/539; A61F2013/15284; A61F2013/15365; A61F2013/15373
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1930114A
Cited
US1971606A
Cited
US2002368A
Cited
US2019842A
Cited
US2119610A
Cited
US2560332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |