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US4194503A
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US
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Intra-uterine contraceptive device
Assignee: Individual
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Filing: 1977-11-28
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Granted: 1980-03-25
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Expires: 1997-11-28
Abstract
Abstract An IUD in which an inner base ring made from a resilient material and formed into a generally circular shape with a bulbous free end carries a jelly-like covering material over its entire extent having formed with a plurality of bead-like protrusions.
Inventors
- 👤 Laszlo K. Csatary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:40
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/06; A61F6/14; A61F6/142
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
52 words
An intra-uterine contraceptive device comprising an inner base ring made from a resilient material and formed into a generally circular shape having a free end formed into a bulbous shape, and a jelly-like material formed on said inner ring into a plurality of bead-like protrusions over the length of said inner ring.
Claim 2
Dependent Claim
52 words
An intra-uterine contraceptive device comprising an inner base ring made from a resilient material and formed into a generally circular shape having a free end formed into a bulbous shape, and a jelly-like material formed on said inner ring into a plurality of bead-like protrusions over the length of said inner ring.
Claim 3
Dependent Claim
35 words
The contraceptive device as claimed in claim 1, wherein said base ring has a plurality of bead-like formations thereon, the bead-shaped protrusions of said covering material coinciding with the bead-like formations of said base ring.
Claim 4
Dependent Claim
24 words
The contraceptive device as claimed in claim 1, wherein said covering material has a plurality of whisker means formed on said bead-like shapes thereof.
Claim 5
Dependent Claim
18 words
The contraceptive device as claimed in claim 1, wherein said base ring is made from a synthetic material.
Claim 6
Dependent Claim
20 words
The contraceptive device as claimed in claim 1, wherein said covering material is made from silicone rubber or teflonized rubber.
Claim 7
Dependent Claim
20 words
The contraceptive device as claimed in claim 1, wherein the jelly-like material covers said inner ring over its entire extent.
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) | 1983-03-25 | 1983-09-24 | 1984-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-25 | 1987-09-24 | 1988-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-25 | 1991-09-24 | 1992-03-25 | $7700.00 | Window Closed / Lapsed |