US4335720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catamenial tampon with hollow core
Assignee: Individual
•
Filing: 1980-04-09
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Granted: 1982-06-22
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Expires: 2000-04-09
Abstract
Abstract A catamenial tampon having a hollow core opening onto its insert end and having radial slots at said end in communication with the hollow core; the invention also relates to the method of tampon fabrication and to a tool used in such fabrication.
Inventors
- 👤 Jacob A. Glassman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:15
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/2051; Y; Y10; Y10S; Y10S604/00; Y10S604/904
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
91 words
A catamenial tampon comprising a compressed, shape-retaining, generally cylindrical fibrous body having an insert end and an outer end, an axial cavity in said body opening at one end onto the insert end of the body, the cavity having it's surrounding wall tapered inwardly toward and terminating short of the outer end of the body, and at least one radial slot in said wall in flow communication with the cavity, said slot being substantially coextensive with said cavity length and opening at one end onto the insert end of said body.
Claim 2
Dependent Claim
91 words
A catamenial tampon comprising a compressed, shape-retaining, generally cylindrical fibrous body having an insert end and an outer end, an axial cavity in said body opening at one end onto the insert end of the body, the cavity having it's surrounding wall tapered inwardly toward and terminating short of the outer end of the body, and at least one radial slot in said wall in flow communication with the cavity, said slot being substantially coextensive with said cavity length and opening at one end onto the insert end of said body.
Claim 3
Dependent Claim
23 words
The catamenial tampon recited in claim 1, wherein the slot is of reduced depth as it approaches the outer end of the body.
Claim 4
Dependent Claim
23 words
The catamenial tampon recited in claim 1, wherein there are a plurality of such slots in said wall circumferencially spaced around the cavity.
Claim 5
Dependent Claim
34 words
The catamenial tampon recited in claim 1, wherein the body is comprised of a plurality of pads of fibrous shape-retaining material drawn into a substantially cup-shaped configuration and compacted into the generally cylindrical shape.
Claim 6
Dependent Claim
27 words
The catamenial tampon recited in claim 1, wherein the slot opens onto the outside surface of the body in the area closely adjacent to the insert end.
Claim 7
Dependent Claim
100 words
A catamenial tampon, comprising a compressed shape-retaining generally cylindrical fibrous body having an insert end and an outer end, an axial cavity in said body opening at one end onto the insert end of said body, said cavity being conical with it's base at the insert end and it's apex terminating short of and located closely adjacent to the outer end, at least one radial slot in the wall of the body surrounding the cavity, the slot extending from the insert end to the apex of the cavity and having a progressively reduced depth as it approaches the cavity apex.
Claim 8
Dependent Claim
100 words
A catamenial tampon, comprising a compressed shape-retaining generally cylindrical fibrous body having an insert end and an outer end, an axial cavity in said body opening at one end onto the insert end of said body, said cavity being conical with it's base at the insert end and it's apex terminating short of and located closely adjacent to the outer end, at least one radial slot in the wall of the body surrounding the cavity, the slot extending from the insert end to the apex of the cavity and having a progressively reduced depth as it approaches the cavity apex.
Claim 9
Dependent Claim
35 words
The catamenial tampon recited in claim 1, wherein the body is comprised of a plurality of pads of shape-retaining moisture absorbent material drawn into a substantially cup-shaped configuration and compacted into the generally cylindrical shape.
Claim 10
Dependent Claim
27 words
The catamenial tampon recited in claim 7, wherein the slot opens onto the outside surface of the body in the area closely adjacent to the insert end.
Claim 11
Dependent Claim
23 words
The catamenial tampon recited in claim 8 wherein the body includes a layer of moisture impervious material sandwiched between the plurality of pads.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |