Patent US5066158A successfully refreshed from Google Patents.
US5066158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined negative holder and viewing device
Assignee: Individual
•
Filing: 1991-01-29
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Granted: 1991-11-19
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Expires: 2011-01-29
Abstract
Abstract A combined negative holder and viewing device includes a loose sheet binder having a three-sided rigid folder, and a loose sheet retainer mounted on the folder. An electrical negative viewing device is similarly mounted on the folder to provide lighting, thus facilitating the viewing of negatives.
Inventors
- 👤 Lai-Jen Huang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:33
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/04; B; B42; B42F; B42F5/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
67 words
A combined negative holder and viewing device, comprising: a loose sheet binder including a three-sided rigid folder having a front panel, a rear panel, and a center panel hinged to and provided between said front and rear panels, and a loose sheet retainer mounted on said center panel; and an electrical negative viewing device mounted on said rear panel to provide sufficient electrical lighting to view negatives.
Claim 2
Dependent Claim
67 words
A combined negative holder and viewing device, comprising: a loose sheet binder including a three-sided rigid folder having a front panel, a rear panel, and a center panel hinged to and provided between said front and rear panels, and a loose sheet retainer mounted on said center panel; and an electrical negative viewing device mounted on said rear panel to provide sufficient electrical lighting to view negatives.
Claim 3
Dependent Claim
47 words
The combined negative holder and viewing device as claimed in claim 1, further comprising a plurality of loose negative holding sheets detachably bound by said loose sheet retainer, each said negative holding sheet having at least one receiving pouch to receive at least one strip of negatives.
Claim 4
Dependent Claim
41 words
The combined negative holder and viewing device as claimed in claim 2, wherein said loose sheet retainer comprises at least one ring-shaped retainer, each said negative holding sheet having an appropriate number of punched holes to detachably engage said ring-shaped retainer.
Claim 5
Dependent Claim
86 words
The combined negative holder and viewing device as claimed in claim 1, wherein said electrical negative viewing device comprises: a hollow casing mounted on said rear panel and having a transparent top end; a reflector plate provided inside said hollow casing and dividing said hollow casing into an upper and a lower chamber; a cell means disposed inside said lower chamber; an electrical light source disposed inside said upper chamber; and a power supply switch to selectively connect said electrical light source to said cell means.
Claim 6
Dependent Claim
23 words
The combined negative holder and viewing device as claimed in claim 4, wherein said electrical light source comprises at least one light bulb.
Claim 7
Dependent Claim
21 words
The combined negative holder and viewing device as claimed in claim 4, wherein said electrical light source is a fluorescent lamp.
Claim 8
Dependent Claim
22 words
The combined negative holder and viewing device as claimed in 4, further comprising a writing implement detachably mounted on said hollow casing.
Claim 9
Dependent Claim
19 words
The combined negative holder and viewing device as claimed in claim 4, wherein said reflector plate is substantially concave.
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) | 1994-11-18 | 1995-05-20 | 1995-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-18 | 1999-05-20 | 1999-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-18 | 2003-05-20 | 2003-11-19 | $7700.00 | Window Closed / Lapsed |