US4046147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary napkin
Assignee: Individual
•
Filing: 1976-08-05
•
Granted: 1977-09-06
•
Expires: 1996-08-05
Abstract
Abstract A sanitary napkin formed of a single blank of soft material that is folded in such a way that a hump shape having two spaced longitudinally extending slits is formed thereon, ridges forming part of said hump shape sealing in use against the appropriate body portions.
Inventors
- 👤 Cecilia Berg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:47
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/47; A61F13/472; A61F13/47218; A61F13/47227; A61F13/53; A61F13/534; A61F13/53409; A61F13/56; A61F13/58; A61F2013/53445; A61F2013/586
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
112 words
In a sanitary napkin of a soft, absorbent material and having a longitudinally extending hump portion with softly rounded edges the improvement that the napkin is manufactured of a single blank, that said hump portion if formed partly by folding opposite end portions of the blank to form in cross section an L-shape and partly by folding the middle portion of the blank to form a U-shape having its opening facing away from said hump portion, said U-shape fold being disposed between both L-shaped folds so as to define in the hump two spaced slits extending longitudinally of the napkin, said slits separating ridges cresting the hump shaped by the folded portions.
Claim 2
Dependent Claim
112 words
In a sanitary napkin of a soft, absorbent material and having a longitudinally extending hump portion with softly rounded edges the improvement that the napkin is manufactured of a single blank, that said hump portion if formed partly by folding opposite end portions of the blank to form in cross section an L-shape and partly by folding the middle portion of the blank to form a U-shape having its opening facing away from said hump portion, said U-shape fold being disposed between both L-shaped folds so as to define in the hump two spaced slits extending longitudinally of the napkin, said slits separating ridges cresting the hump shaped by the folded portions.
Claim 3
Dependent Claim
27 words
A sanitary napkin as claimed in claim 1 wherein the blank material has at least a double thickness at the both L-shapes by reason of its folding.
Claim 4
Dependent Claim
22 words
A sanitary napkin as claimed in claim 1, wherein both outer ridges of the hump portion are higher than the middle ridge.
Claim 5
Dependent Claim
126 words
A sanitary napkin comprising a generally flat, oblong-shaped fabric base and a projection extending longitudinally thereof for part of the length of the said base and leaving both end portions of the latter free, said projection being integral with the base and being made up of folded portions, a middle one and one lateral folded portion along each side of the middle one, said folded portions being separated by spaced slits running along the whole length thereof, the said middle portion being an inverted U-shape and the lateral portions being each an L-shape facing away from each other, the top level of said U-shape portion being lower than the top level of said L-shape portions; adhesive areas being provided at the base surface opposite said projection.
Claim 6
Dependent Claim
126 words
A sanitary napkin comprising a generally flat, oblong-shaped fabric base and a projection extending longitudinally thereof for part of the length of the said base and leaving both end portions of the latter free, said projection being integral with the base and being made up of folded portions, a middle one and one lateral folded portion along each side of the middle one, said folded portions being separated by spaced slits running along the whole length thereof, the said middle portion being an inverted U-shape and the lateral portions being each an L-shape facing away from each other, the top level of said U-shape portion being lower than the top level of said L-shape portions; adhesive areas being provided at the base surface opposite said projection.
References Cited (Backward Citations)
US2092346A
Cited
US2331355A
Cited
GB588689A
Cited
US3183909A
Cited
US3420234A
Cited
US3420235A
Cited
US3491759A
Cited
US3528422A
Cited
US3983873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |