Patent US4168573A successfully refreshed from Google Patents.
US4168573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copying easel
Assignee: Individual
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Filing: 1977-12-12
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Granted: 1979-09-25
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Expires: 1997-12-12
Abstract
Abstract A copying easel for copying three-dimensional objects including a support frame, a copy frame rotatably attached to the support frame and an open sighting awning rotatably attached to the support frame. The copy frame is constructed to cooperate with the support frame to support the device during use and includes a rigid, transparent copy base material over which is placed a removable, transparent, flexible copying medium upon which the copy is made. The sighting awning defines a sighting opening to view the object through the transparent copying medium and the transparent copy base. The awning further has sufficient thickness to block the vision of the unused eye and has two positioned indentations to accommodate the nose of the user depending upon which eye is to be used.
Inventors
- 👤 Herbert S. Chase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:07
CPC Classifications
B; B43; B43L; B43L13/00; B43L13/14; B43L13/16; B43L13/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
208 words
A copying easel for copying three-dimensional objects by sighting said objects through a transparent copying medium mounted on and coplanar with a transparent, rigid copy base, comprising, in combination, a support frame including two legs, and a copy frame including two legs and a transparent, rigid copy base, rotatably attached to each other in an easel-type support configuration, an open, sighting awning rotatably attached to said support frame and defining a sighting opening therein, said copy frame defining stop slots therein for positioning said awning for operation and use of said easel by terminating the rotation of said sighting awning, said awning having a sighting bar defining said sighting opening and a pair of support bars perpendicular to said sighting bar for mating with said stop slots, said sighting bar further defining a pair of downwardly facing indentations on its lower edge and being of sufficient thickness to, respectively, accommodate the nose of the user, depending on which eye is aligned with the sighting opening for viewing therethrough said objects through said copying medium and said copy base, and for blocking the unused eye of the user, and said copy frame defining media slots for placement and removal of said copying medium adjacent said transparent, rigid copy base.
Claim 2
Dependent Claim
208 words
A copying easel for copying three-dimensional objects by sighting said objects through a transparent copying medium mounted on and coplanar with a transparent, rigid copy base, comprising, in combination, a support frame including two legs, and a copy frame including two legs and a transparent, rigid copy base, rotatably attached to each other in an easel-type support configuration, an open, sighting awning rotatably attached to said support frame and defining a sighting opening therein, said copy frame defining stop slots therein for positioning said awning for operation and use of said easel by terminating the rotation of said sighting awning, said awning having a sighting bar defining said sighting opening and a pair of support bars perpendicular to said sighting bar for mating with said stop slots, said sighting bar further defining a pair of downwardly facing indentations on its lower edge and being of sufficient thickness to, respectively, accommodate the nose of the user, depending on which eye is aligned with the sighting opening for viewing therethrough said objects through said copying medium and said copy base, and for blocking the unused eye of the user, and said copy frame defining media slots for placement and removal of said copying medium adjacent said transparent, rigid copy base.
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) | 1982-09-24 | 1983-03-26 | 1983-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-24 | 1987-03-26 | 1987-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-24 | 1991-03-26 | 1991-09-25 | $7700.00 | Window Closed / Lapsed |