US3694947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Picture frame
Assignee: Individual
•
Filing: 1970-06-04
•
Granted: 1972-10-03
•
Expires: 1990-06-04
Abstract
Abstract This invention relates to a picture frame having an at least partially transparent face plate, with bent edges which resiliently engage a back plate so that a picture to be enjoyed may be held between said face plate and said back plate.
Inventors
- 👤 Kazue Mukai
- 👤 Hisao Odahara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:56
CPC Classifications
A; A47; A47G; A47G1/00; A47G1/14; A47G1/142
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
161 words
A picture frame comprising, an at least partially transparent plastic face plate having only two opposed edges bent backward at an acute angle to form substantially straight flanges, a plastic back plate dimensioned to fit against the rear of said face plate, said back plate likewise having two opposed notched edges bent backward to form flanges fitting between the flanges of said face plate, in which the angle theta between the flanges on said face plate and a principal surface of said face plate is slightly smaller than the angle theta '' between the flanges on said back plate and a principal surface of said back plate whereby the flanges of said face plate compress inwardly the flanges of said back plate, and an object to be exhibited which is positioned between said face plate and said back plate is gripped therebetween due to the pressure exerted by the flanges of said face plate on the flanges of said back plate.
Claim 2
Dependent Claim
161 words
A picture frame comprising, an at least partially transparent plastic face plate having only two opposed edges bent backward at an acute angle to form substantially straight flanges, a plastic back plate dimensioned to fit against the rear of said face plate, said back plate likewise having two opposed notched edges bent backward to form flanges fitting between the flanges of said face plate, in which the angle theta between the flanges on said face plate and a principal surface of said face plate is slightly smaller than the angle theta '' between the flanges on said back plate and a principal surface of said back plate whereby the flanges of said face plate compress inwardly the flanges of said back plate, and an object to be exhibited which is positioned between said face plate and said back plate is gripped therebetween due to the pressure exerted by the flanges of said face plate on the flanges of said back plate.
Claim 3
Dependent Claim
16 words
A picture frame as claimed in claim 1, in which the face plate is wholly transparent.
Claim 4
Dependent Claim
20 words
A picture frame as claimed in claim 1, in which both the face plate and the back plate are transparent.
References Cited (Backward Citations)
US607104A
Cited
US2647834A
Cited
US2614354A
Cited
US2651867A
Cited
US2747311A
Cited
US2919512A
Cited
US3009275A
Cited
US3408759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |