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US3508549A
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Sanitary napkin
Assignee: LAUREL A HENDRICKS
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Filing: 1968-12-26
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Granted: 1970-04-28
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Expires: 1988-12-26
Abstract
No abstract record available.
Inventors
- 👤 Laurel A Hendricks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:59
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/51; A61F13/514; A61F13/51474; A61F13/53; A61F13/539; A61F13/56; A61F13/58; A61F13/51401; A61F2013/51409; A61F2013/5395; A61F2013/583; A61F2013/586
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2295016A
Cited
US2838048A
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US2896626A
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US3044467A
Cited
US3294090A
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US3342184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |