Patent US3527210A successfully refreshed from Google Patents.
US3527210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded spring return means for plastic articles
Assignee: Ortho Pharmaceutical Corp
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Filing: 1965-04-30
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Granted: 1970-09-08
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Expires: 1985-04-30
Abstract
No abstract record available.
Inventors
- 👤 Edward J Towns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:08
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/06; A61F6/14; A61F6/142; A61F6/144; A61F6/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A RING-SHAPED MOLDED PLASTIC INTRAUTERINE DEVICE HAVING AN INSIDE DIAMETER SUBSTANTIALLY GREATER THAN ITS MAXIMUM CROSS-SECTIONAL DIMENSION TAKEN ALONG A RADIUS AND ADAPTED TO BE BENT AT AT LEAST ONE PARTICULAR LOCATION, SAID DEVICE HAVING MOLDED THEREIN AT LEAST ONE HINGED COMPRISING A WEB DISPOSED ON THE INSIDE PERIMETER OF SAID DEVICE AND A THE LOCATION AT WHICH SAID DEVICE IS INTENDED TO BE BENT, SAID WEB HAVING A THICKNESS IN THE PLANE ESSENTIALLY PERPENDICULAR TO THE PLANE OF BENDING WHICH IS SUBSTANTIALLY LESS THAN THE THICKNESS OF THE ADJACENT PORTION OF SAID DEVICE IN THE PLANE ESSENTIALLY PERPENDICULAR TO THE PLANE OF BENDING AND SAID WEB BEING OF SUCH THICKNESS AND SUCH DEPTH TO INITIALLY RESIST DEFORMATION OF SAID DEVICE IN RESPONSE TO AN EXTERNALLY APPLIED FORCE AND TO URGE SAID DEVICE BACK TO ITS ORIGINAL RINGSHAPED CONFIGURATION AFTER HAVING BEEN BENT AND UPON RELEASE OF EXTERNALLY APPLIED FORCE, WHEREBY WHEN SAID DEVICE IS BENT IN THE INTENDED DIRECTION, SAID WEB BENDS IN A PLANE ESSENTIALLY PERPENDICULAR THERETO.
Claim 2
Dependent Claim
169 words
A RING-SHAPED MOLDED PLASTIC INTRAUTERINE DEVICE HAVING AN INSIDE DIAMETER SUBSTANTIALLY GREATER THAN ITS MAXIMUM CROSS-SECTIONAL DIMENSION TAKEN ALONG A RADIUS AND ADAPTED TO BE BENT AT AT LEAST ONE PARTICULAR LOCATION, SAID DEVICE HAVING MOLDED THEREIN AT LEAST ONE HINGED COMPRISING A WEB DISPOSED ON THE INSIDE PERIMETER OF SAID DEVICE AND A THE LOCATION AT WHICH SAID DEVICE IS INTENDED TO BE BENT, SAID WEB HAVING A THICKNESS IN THE PLANE ESSENTIALLY PERPENDICULAR TO THE PLANE OF BENDING WHICH IS SUBSTANTIALLY LESS THAN THE THICKNESS OF THE ADJACENT PORTION OF SAID DEVICE IN THE PLANE ESSENTIALLY PERPENDICULAR TO THE PLANE OF BENDING AND SAID WEB BEING OF SUCH THICKNESS AND SUCH DEPTH TO INITIALLY RESIST DEFORMATION OF SAID DEVICE IN RESPONSE TO AN EXTERNALLY APPLIED FORCE AND TO URGE SAID DEVICE BACK TO ITS ORIGINAL RINGSHAPED CONFIGURATION AFTER HAVING BEEN BENT AND UPON RELEASE OF EXTERNALLY APPLIED FORCE, WHEREBY WHEN SAID DEVICE IS BENT IN THE INTENDED DIRECTION, SAID WEB BENDS IN A PLANE ESSENTIALLY PERPENDICULAR THERETO.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |