US4225910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extension lamp apparatus
Assignee: Individual
•
Filing: 1979-01-16
•
Granted: 1980-09-30
•
Expires: 1999-01-16
Abstract
Abstract An extension lamp apparatus comprising: a protective grill having an essentially undeformable base; a handle comprising a resiliently deformable upper section; and a bulb socket; whereby the base of the grill is fitted over the upper portion of the handle and the socket is force fitted within the upper section of the handle thereby locking the base of the protective grill in place.
Inventors
- 👤 Daniel Conte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:29
CPC Classifications
F; F21; F21L; F21L14/00; F21L14/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
158 words
A non-disassemblable extension lamp apparatus comprising: (a) a protective grill having an essentially undeformable base and comprising a plurality of downwardly extending grill sections and a rigid ring, said grill sections connected to and extending beyond said ring; (b) a handle comprising a resiliently deformable upper section, said handle extending generally outwardly from its lower section towards a continuous outer groove which is formed in said upper section, said upper section then extending inwardly from said outer groove in a direction generally opposite to the lower section and having an inner groove; and (c) a resilient bulb socket having a protruding rib; whereby said ring is fitted into said outer groove and over the upper section of said handle and said socket is force-fitted within the upper section of said handle thereby locking said rib in said inner groove and locking said ring of said protective grill in place and preventing removal of said grill from said handle.
Claim 2
Dependent Claim
158 words
A non-disassemblable extension lamp apparatus comprising: (a) a protective grill having an essentially undeformable base and comprising a plurality of downwardly extending grill sections and a rigid ring, said grill sections connected to and extending beyond said ring; (b) a handle comprising a resiliently deformable upper section, said handle extending generally outwardly from its lower section towards a continuous outer groove which is formed in said upper section, said upper section then extending inwardly from said outer groove in a direction generally opposite to the lower section and having an inner groove; and (c) a resilient bulb socket having a protruding rib; whereby said ring is fitted into said outer groove and over the upper section of said handle and said socket is force-fitted within the upper section of said handle thereby locking said rib in said inner groove and locking said ring of said protective grill in place and preventing removal of said grill from said handle.
Claim 3
Dependent Claim
30 words
The extension lamp apparatus as defined by claim 1 wherein said resiliently deformable upper section of said handle comprises gaps therein adapted to permit said upper section to be deformed.
Claim 4
Dependent Claim
16 words
The extension lamp apparatus as defined by claim 1 wherein said socket is a bayonet socket.
Claim 5
Dependent Claim
36 words
The extension lamp apparatus as defined by claim 3 wherein said bayonet socket comprises two piston contact elements, each of said piston contact elements being slidably engaged within a bore in the base of said socket.
Claim 6
Dependent Claim
55 words
The extension lamp apparatus as defined by claim 4 wherein the top of each of said piston contacts extends out of the top of said bore to contact the base of a bulb inserted in said socket and the bottom of each of said piston contacts is adapted to be attached to an electrical cable.
Claim 7
Dependent Claim
34 words
The extension lamp apparatus as defined by claim 5 further comprising an electrical cable having two leads and wherein said bottom of each of said piston contacts is crimped around one of said leads.
Claim 8
Dependent Claim
49 words
The extension lamp apparatus as defined by claim 6 wherein each of said piston contacts comprises larger and smaller diameter portions, said smaller diameter portion being arranged within said bore, and being surrounded by a spring adapted to exert an upwardly directed force on each of said piston contacts.
Claim 9
Dependent Claim
19 words
The extension lamp apparatus as defined by claim 1 wherein said grill sections also extend beyond said outer groove.
References Cited (Backward Citations)
US1450253A
Cited
US1700167A
Cited
US1761436A
Cited
US1995172A
Cited
US1958222A
Cited
GB426312A
Cited
US2085683A
Cited
US2096604A
Cited
US2172223A
Cited
US2248399A
Cited
US2315026A
Cited
US2385655A
Cited
US2394697A
Cited
US2549487A
Cited
US2470280A
Cited
US2773973A
Cited
US3767913A
Cited
US3917941A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-30 | 1984-03-31 | 1984-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-30 | 1988-03-31 | 1988-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-30 | 1992-03-31 | 1992-09-30 | $7700.00 | Window Closed / Lapsed |