US3382869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intrauterine contraceptive device
Assignee: Ortho Pharmaceutical Corp
•
Filing: 1966-02-02
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Granted: 1968-05-14
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Expires: 1986-02-02
Abstract
No abstract record available.
Inventors
- 👤 William R Rigney
- 👤 Edmund A Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:23
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/06; A61F6/14; A61F6/142
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
AN INTRAUTERINE CONTRACEPTIVE DEVICE COMPRISING A RING, SAID RING BEING FORMED FROM AT LEAST ONE CONVOLUTION OF A SINGLE STRAND OF RESILIENT MATERIAL HAVING BEVELED ENDS, SAID ENDS OVERLAPPING AT LEAST A PORTION OF SAID RING.
Claim 2
Dependent Claim
36 words
AN INTRAUTERINE CONTRACEPTIVE DEVICE COMPRISING A RING, SAID RING BEING FORMED FROM AT LEAST ONE CONVOLUTION OF A SINGLE STRAND OF RESILIENT MATERIAL HAVING BEVELED ENDS, SAID ENDS OVERLAPPING AT LEAST A PORTION OF SAID RING.
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) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |