US3820248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated gun sight
Assignee: Individual
•
Filing: 1971-12-23
•
Granted: 1974-06-28
•
Expires: 1991-12-23
Abstract
Abstract An illuminated gun sight assembly for use with firearms under conditions of restricted light has a sight tube having front and rear sight means. The rear sight means has angularly related bores which house a luminescent substance, and openings expose the substance as two lines of light dots. The forward sight means includes a luminous member visually alignable between the lines of light dots.
Inventors
- 👤 N Hayward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:19
CPC Classifications
F; F41; F41G; F41G1/00; F41G1/32
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
178 words
An illuminated gun sight for use in restricted light comprising: an elongated base member; means for attachment of the base member to a firearm; an elongated sight tube affixed to the base member, the sight tube having opposite leading and trailing end sections; an upstanding rear sight block positioned on the sight tube in the trailing end section thereof; said rear sight block having therein a sighting notch and a pair of linear bores formed therein generally orthogonal to the axis of said tube and extending along lines which converge at said notch; a luminescEnt substance disposed in each said bores; a series of openings in the sight block, said openings being open towards the trailing end of the sight tube and being arranged in lines intersecting the bores and the notch whereby the luminescent substance is visible there through from the trailing end section of the sight tube; and a forward sight element mounted in the leading end section of said sight tube including a point of aim adapted for visual alignment with the lines of openings.
Claim 2
Dependent Claim
178 words
An illuminated gun sight for use in restricted light comprising: an elongated base member; means for attachment of the base member to a firearm; an elongated sight tube affixed to the base member, the sight tube having opposite leading and trailing end sections; an upstanding rear sight block positioned on the sight tube in the trailing end section thereof; said rear sight block having therein a sighting notch and a pair of linear bores formed therein generally orthogonal to the axis of said tube and extending along lines which converge at said notch; a luminescEnt substance disposed in each said bores; a series of openings in the sight block, said openings being open towards the trailing end of the sight tube and being arranged in lines intersecting the bores and the notch whereby the luminescent substance is visible there through from the trailing end section of the sight tube; and a forward sight element mounted in the leading end section of said sight tube including a point of aim adapted for visual alignment with the lines of openings.
Claim 3
Dependent Claim
14 words
The invention of claim 1, wherein: said bores and series of openings converge upwardly.
Claim 4
Dependent Claim
29 words
The invention of claim 1 wherein the forward sight element has therein a bore open towards the trailing end of said sight tube, and luminescent means in said bore.
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) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |