US3897062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrowhead
Assignee: Individual
•
Filing: 1974-06-06
•
Granted: 1975-07-29
•
Expires: 1994-06-06
Abstract
Abstract An arrowhead includes a generally longitudinal body portion, one end of which is pointed and the other end of which is blunt. A pair of arcuate blades extend from different sides of the body portion to curve up and over opposite faces of the portion in a generally semicircular manner. A pair of triangular blades, each formed from a corresponding one of the arcuate blades, extend from a corresponding side of the longitudinal portion and at a right angle thereto in a direction generally opposite the direction in which the corresponding arcuate blade extends.
Inventors
- 👤 Lawrence B Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:10
CPC Classifications
F; F42; F42B; F42B6/00; F42B6/02; F42B6/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
163 words
An arrowhead comprising a longitudinal body section, a front end of which is formed into a point and a rear end of which is formed to define a socket for receiving an arrow shaft, a pair of arcuate blades extending from either side of said body section and each curving up and over a different one of the faces of said section in a generally semicircular fashion, each of said blades having a sharp leading edge and a trailing edge, said leading edge extending from a corresponding side of said body section upwardly and away from the pointed end to join the trailing edge, and said trailing edge extending to and joining the rear end of said body section, and a pair of second blades, each cut from a different one of said arcuate blades to extend from a different side of said body section in a direction generally opposite the direction of extension of the arcuate blade from which it is cut.
Claim 2
Dependent Claim
163 words
An arrowhead comprising a longitudinal body section, a front end of which is formed into a point and a rear end of which is formed to define a socket for receiving an arrow shaft, a pair of arcuate blades extending from either side of said body section and each curving up and over a different one of the faces of said section in a generally semicircular fashion, each of said blades having a sharp leading edge and a trailing edge, said leading edge extending from a corresponding side of said body section upwardly and away from the pointed end to join the trailing edge, and said trailing edge extending to and joining the rear end of said body section, and a pair of second blades, each cut from a different one of said arcuate blades to extend from a different side of said body section in a direction generally opposite the direction of extension of the arcuate blade from which it is cut.
Claim 3
Dependent Claim
25 words
An arrowhead as in claim 1 wherein each of said second blades extends at substantially a right angle from the plane of the body section.
Claim 4
Dependent Claim
50 words
An arrowhead as in claim 2 wherein each of said second blades is triangular-shaped, having a sharp leading edge extending upwardly from a corresponding side of said body section toward the rear end thereof, and a trailing edge joining the leading edge to the corresponding side of the body section.
Claim 5
Dependent Claim
20 words
An arrowhead as in claim 1 wherein said arcuate blades and second blades are integrally formed with said body section.
Claim 6
Dependent Claim
48 words
An arrowhead as in claim 1 wherein said body section is formed of two elements affixed together in laminated fashion, and wherein each arcuate blade and the second blade cut from said each arcuate blade are integrally formed with and extend from a different one of said elements.
Claim 7
Dependent Claim
28 words
An arrowhead as in claim 1 wherein the leading edge of each arcuate blade curves through a locus of points rearwardly a different one of said second blades.
Claim 8
Dependent Claim
127 words
An arrowhead comprising two generally elongated elements secured together in a laminated fashion to form a body portion, a front end of the body portion being pointed and a rear end being blunt, said elements formed to define a socket therebetween at the rear end for receiving an arrow shaft, a pair of arcuate blades, each integral with and extending from a different one of the elements and from a different side of said body portion to curve up and over a different face of said portion, and a pair of triangular blades, each formed from a corresponding one of said arcuate blades and extending from a corresponding side of said body portion in a direction generally opposite the direction in which the corresponding arcuate blade extends.
Claim 9
Dependent Claim
127 words
An arrowhead comprising two generally elongated elements secured together in a laminated fashion to form a body portion, a front end of the body portion being pointed and a rear end being blunt, said elements formed to define a socket therebetween at the rear end for receiving an arrow shaft, a pair of arcuate blades, each integral with and extending from a different one of the elements and from a different side of said body portion to curve up and over a different face of said portion, and a pair of triangular blades, each formed from a corresponding one of said arcuate blades and extending from a corresponding side of said body portion in a direction generally opposite the direction in which the corresponding arcuate blade extends.
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) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |