Patent US4641124A successfully refreshed from Google Patents.
Patent US3684831A successfully refreshed from Google Patents.
US3684831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable lecturn unit
Assignee: ELECTRONIC DEV CORP
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Filing: 1970-10-19
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Granted: 1972-08-15
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Expires: 1990-10-19
Abstract
Abstract A portable lecturn consisting of a hinged lecturn platform support constructed and arranged to be locked into the latching mechanism of an open hinged container such as an attache case, whereby a rigid, box-like housing affording access to sound receiving and transmitting equipment therewithin and mounting a microphone stand assembly is provided. When not in use, the hinged platform-support folds and is stored within the case along with the microphone stand assembly and the sound receiving and transmitting equipment.
Inventors
- 👤 Richard K Fullmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:15
CPC Classifications
H; H04; H04R; H04R27/00; H04R27/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
135 words
A portable lecturn unit comprising a housing having a lid portion connected by a first hinge to a bottom portion, means for holding said lid portion in an open position extending upwardly and substantially normal to the plane of the bottom portion when said bottom portion is resting on a substantially horizontal surface; a platform-support member including a flat platform portion, a support portion, and a second hinge interconnecting the platform portion and the support portion; means for releasably securing the edge of the platform portion remote from the second hinge to the top of the housing at its edge most remote from the first hinge; and means for releasably securing the edge of the support portion remote from the second hinge to the edge of the bottom portion most remote from the first hinge.
Claim 2
Dependent Claim
135 words
A portable lecturn unit comprising a housing having a lid portion connected by a first hinge to a bottom portion, means for holding said lid portion in an open position extending upwardly and substantially normal to the plane of the bottom portion when said bottom portion is resting on a substantially horizontal surface; a platform-support member including a flat platform portion, a support portion, and a second hinge interconnecting the platform portion and the support portion; means for releasably securing the edge of the platform portion remote from the second hinge to the top of the housing at its edge most remote from the first hinge; and means for releasably securing the edge of the support portion remote from the second hinge to the edge of the bottom portion most remote from the first hinge.
Claim 3
Dependent Claim
66 words
A portable lecturn unit as in claim 1, wherein the housing has latch means on the edge of the bottom portion opposite the first hinge and latch means on the edge of the top portion remote from the first hinge, said latch means on the top portion being cooperable with the latch means on the platform portion for engaging the latch means on the top portion.
Claim 4
Dependent Claim
39 words
A portable lecturn unit as in claim 2, wherein the means for releasably securing the edge of the support portion to the bottom portion includes means on the support portion for engaging the latch means on the bottom portion.
Claim 5
Dependent Claim
25 words
A portable lecturn unit as in claim 3, wherein the support portion has an opening therethrough to provide access to the interior of the housing.
Claim 6
Dependent Claim
83 words
A portable lecturn unit as in claim 1, further including an electrical signal receiving and transmitting unit in the housing; a speaker adapted to be stored in the housing and coupled to the receiving and transmitting unit; and a microphone adapted to be connected to the housing and to be supported thereby, and coupled to the receiving and transmitting unit, whereby a voice picked up by the microphone is transmitted to the receiving and transmitting unit and then is broadcast through the speaker.
Claim 7
Dependent Claim
36 words
A portable lecturn unit as in claim 5, wherein the support portion of the platform-support member is cut away to provide access to the interior of the housing and controls of the receiving and transmitting unit.
Claim 8
Dependent Claim
92 words
A portable lecturn unit as in claim 6, wherein the housing has latch means on the edge of the bottom portion remote from the first hinge, a latch means on the top portion being cooperable with the latch means on the bottom portion to hold the top portion against the said bottom portion when the housing is closed; and wherein the means for releasably securing the edge of the platform portion to the top of the housing includes means on the platform portion for engaging said latch means on the top portion.
Claim 9
Dependent Claim
39 words
A portable lecturn unit as in claim 7, wherein the means for releasably securing the edge of the support portion to the bottom portion includes means on the support portion for engaging the latch means on the bottom portion.
Claim 10
Dependent Claim
28 words
A portable lecturn unit as in claim 8, wherein the latch means on the lid portion and the latch means on the support portion are of similar configuration.
Claim 11
Dependent Claim
47 words
A portable lecturn as in claim 9, wherein the support portion extends slightly above the platform portion when the platform portion is connected to the top portion and the support portion is connected to the bottom portion whereby the unit is ready for use as a lecturn.
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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |