US3776240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Obstetrical instrument
Assignee: Individual
•
Filing: 1972-02-04
•
Granted: 1973-12-04
•
Expires: 1992-02-04
Abstract
Abstract An instrument for obstetrical and surgical use being of general dipper form having a relatively short handle, a thin, rounded edge plate-like head and an intermediate narrow section between said head and said handle; said head being longitudinally arcuated and tapering rearwardly toward said intermediate section.
Inventors
- 👤 E Woodson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:20
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/42
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
142 words
An instrument for obstetrical and surgical usage comprising a handle, a plate-like head, an intermediate section disposed between and interconnecting said handle and said head, said head being disposed downwardly of said handle when the latter is in horizontal diSposition and being arcuated along its longitudinal axis to present a convex face displaced from the axis of said handle, said head having a relatively shallow transverse curvature which is normally upwardly concave, said head having a leading edge formed on a shallow arc causing said head to be endwise convex, said head having its maximum cross section in the zone immediately proximate its said leading edge, said head tapering lengthwise from said maximum cross sectional zone convergingly toward said intermediate section, said head being relatively thin, having a thickness within the range of onesixteenth inch to two-sixteenth inch throughout its major extent.
Claim 2
Dependent Claim
142 words
An instrument for obstetrical and surgical usage comprising a handle, a plate-like head, an intermediate section disposed between and interconnecting said handle and said head, said head being disposed downwardly of said handle when the latter is in horizontal diSposition and being arcuated along its longitudinal axis to present a convex face displaced from the axis of said handle, said head having a relatively shallow transverse curvature which is normally upwardly concave, said head having a leading edge formed on a shallow arc causing said head to be endwise convex, said head having its maximum cross section in the zone immediately proximate its said leading edge, said head tapering lengthwise from said maximum cross sectional zone convergingly toward said intermediate section, said head being relatively thin, having a thickness within the range of onesixteenth inch to two-sixteenth inch throughout its major extent.
Claim 3
Dependent Claim
27 words
An instrument for obstetrical and surgical usage as defined in claim 1 and further characterized by said instrument having a weight in the order of 7 ounces.
References Cited (Backward Citations)
US1072038A
Cited
US1571956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |