US3245449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speaker mounting screw
Assignee: National Lock Co
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Filing: 1964-04-09
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Granted: 1966-04-12
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Expires: 1984-04-09
Abstract
No abstract record available.
Inventors
- 👤 Robert H Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:08
CPC Classifications
F; F16; F16B; F16B35/00; F16B35/04; F16B35/06; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/956; Y10S411/957; Y10S411/959; Y10S411/965; Y10S411/967
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A SPEAKER MOUNTING FOR A CABINET HAVING A FRONT, A SCREW HAVING A PROJECTION SECURED TO SAID CABINET FRONT AND INCLUDING A SHORT CYLINDRICAL SHANK HAVING A SMOOTH EXTERIOR OF UNIFORM DIAMETER WITH SAID SHANK PIERCING AND PROJECTING FORWARDLY THROUGH AN OPENING IN AND BEYOND THE OUTER SURFACE OF SAID CABINET FRONT, A RELATIVELY THIN RADIAL FLANGE ON SAID SHANK HAVING PARALLEL FLAT SURFACES, ON OF WHICH ABUTS THE INNER SURFACE OF THE CABINET FRONT AND LIMITS THE DEPTH OF PENETRATION AND THE OTHER FLAT SURFACE ABUTTING THE SPEAKER, SAID FIRST MENTIONED SURFACE HAVING A PLURALITY OF CIRCUMFERENTIALLY EQUALLY SPACED NIBS FORMED THEREON AND RADIALLY OUTWARDLY SPACED FROM SAID SMOOTH CYLINDRICAL SHANK, SAID NIBS EACH HAVING A CIRCUMFERENTIALLY CURVED INWARDLY INCLINED OUTSIDE WALL, AN OUTWARDLY INCLINED INNER WALL, AND A PAIR OF UPWARDLY AND INWARDLY TAPERING AND RADIALLY OUTWARDLY DIVERGING SIDE WALLS TERMINATING IN A FLAT FACE EMBEDDED IN THE ADJACENT INNER SURFACE OF THE CABINET FRONT TO
Claim 2
Dependent Claim
158 words
A SPEAKER MOUNTING FOR A CABINET HAVING A FRONT, A SCREW HAVING A PROJECTION SECURED TO SAID CABINET FRONT AND INCLUDING A SHORT CYLINDRICAL SHANK HAVING A SMOOTH EXTERIOR OF UNIFORM DIAMETER WITH SAID SHANK PIERCING AND PROJECTING FORWARDLY THROUGH AN OPENING IN AND BEYOND THE OUTER SURFACE OF SAID CABINET FRONT, A RELATIVELY THIN RADIAL FLANGE ON SAID SHANK HAVING PARALLEL FLAT SURFACES, ON OF WHICH ABUTS THE INNER SURFACE OF THE CABINET FRONT AND LIMITS THE DEPTH OF PENETRATION AND THE OTHER FLAT SURFACE ABUTTING THE SPEAKER, SAID FIRST MENTIONED SURFACE HAVING A PLURALITY OF CIRCUMFERENTIALLY EQUALLY SPACED NIBS FORMED THEREON AND RADIALLY OUTWARDLY SPACED FROM SAID SMOOTH CYLINDRICAL SHANK, SAID NIBS EACH HAVING A CIRCUMFERENTIALLY CURVED INWARDLY INCLINED OUTSIDE WALL, AN OUTWARDLY INCLINED INNER WALL, AND A PAIR OF UPWARDLY AND INWARDLY TAPERING AND RADIALLY OUTWARDLY DIVERGING SIDE WALLS TERMINATING IN A FLAT FACE EMBEDDED IN THE ADJACENT INNER SURFACE OF THE CABINET FRONT TO
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |