US4040417A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intrauterine device
Assignee: GD Searle LLC
•
Filing: 1973-12-12
•
Granted: 1977-08-09
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Expires: 1993-12-12
Abstract
Abstract An intrauterine device including a contraceptively effective amount of non-toxic copper or zinc compound. The device is adapted to be inserted into the uterine cavity for a prolonged period of time.
Inventors
- 👤 Jaime A. Zipper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:35
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0034; A61K9/0039; A61F; A61F6/00; A61F6/06; A61F6/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
36 words
An intrauterine device adaptable to insertion in the uterine cavity and capable of being retained therein for a prolonged period of time, said device including a contraceptively effective amount of a non-toxic copper or zinc compound.
Claim 2
Dependent Claim
36 words
An intrauterine device adaptable to insertion in the uterine cavity and capable of being retained therein for a prolonged period of time, said device including a contraceptively effective amount of a non-toxic copper or zinc compound.
Claim 3
Dependent Claim
18 words
A device as in claim 1 wherein said compound is a copper oxide or a non-toxic copper salt.
Claim 4
Dependent Claim
33 words
A device as in claim 2 wherein said oxide or salt is present in the uterus in an amount providing from about 2 μg to about 2 mg of soluble copper per day.
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) | 1980-08-08 | 1981-02-07 | 1981-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-08 | 1985-02-07 | 1985-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-08 | 1989-02-07 | 1989-08-09 | $7700.00 | Window Closed / Lapsed |