US3693496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concealed nails
Assignee: Individual
•
Filing: 1971-04-21
•
Granted: 1972-09-26
•
Expires: 1991-04-21
Abstract
Abstract The invention is directed to a new type of concealed nail comprising a body section having two ends with an integral flange portion extending from the body sections and positioned to stop the penetration of one of the nail ends at a desired depth. The other nail end is then left extending from the work surface a distance which is less than the thickness of a second work piece so as to eliminate holes in fished or exterior surfaces of the second work piece.
Inventors
- 👤 Minoru Koide
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:41
CPC Classifications
F; F16; F16B; F16B15/00; F16B15/0007; Y; Y10; Y10S; Y10S411/00; Y10S411/923
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
70 words
A nail comprising a body portion having a pointed end and a transverse head, a limiting member extending from and integral with said body portion, dividing said body portion into first and second substantially equal and concentric body portions, an angled notch extending around said second body portion, below said head to enable said head to be broken off from said second body portion to form a second pointed end.
Claim 2
Dependent Claim
70 words
A nail comprising a body portion having a pointed end and a transverse head, a limiting member extending from and integral with said body portion, dividing said body portion into first and second substantially equal and concentric body portions, an angled notch extending around said second body portion, below said head to enable said head to be broken off from said second body portion to form a second pointed end.
Claim 3
Dependent Claim
19 words
The nail according to claim 1 wherein said second body portion has serrations thereon to increase its gripping qualities.
Claim 4
Dependent Claim
32 words
The nail according to claim 1 and further comprising at least one additional pointed body portion extending from the limiting member, towards said head and substantially parallel to said second body portion.
Claim 5
Dependent Claim
92 words
A nail comprising a first body portion having a pointed end and a transverse head; a. a second body portion extending from said first body portion at an angle, said second body portion having a pointed end; b. a notch extending around said first body portion, said notch commencing at the juncture of said first and said second body portion and angled toward the pointed end of said first body portion to enable said head to be broken off from said first body portion without a projection above said second body portion.
Claim 6
Dependent Claim
92 words
A nail comprising a first body portion having a pointed end and a transverse head; a. a second body portion extending from said first body portion at an angle, said second body portion having a pointed end; b. a notch extending around said first body portion, said notch commencing at the juncture of said first and said second body portion and angled toward the pointed end of said first body portion to enable said head to be broken off from said first body portion without a projection above said second body portion.
Claim 7
Dependent Claim
12 words
The nail according to claim 4 wherein said angle is 90* .
Claim 8
Dependent Claim
32 words
The nail according to claim 4 and further comprising; a. a pair of wing members extending from said first body portion at the juncture between said first and said second body portions.
References Cited (Backward Citations)
US975235A
Cited
GB203030A
Cited
DE678937C
Cited
US2230392A
Cited
US2328867A
Cited
US2570626A
Cited
US2874603A
Cited
FR1340479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |