Patent US2727136A successfully refreshed from Google Patents.
Patent US4062140A successfully refreshed from Google Patents.
US4062140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide mount
Assignee: BELLMAN AND CO KG
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Filing: 1976-10-12
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Granted: 1977-12-13
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Expires: 1996-10-12
Abstract
Abstract A slide mount comprises two substantially identical frame halves which are snap-fitted together. Each frame half has four interlocking elements which lock the frame halves together and each interlocking element comprises a semi-cylindrical male projection and a complementary semi-cylindrical female recess whereby the frame halves are interlocked by the male portions of each half engaging in the female recesses of the other half.
Inventors
- 👤 Herbert Meyer
- 👤 Heinz Schienagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:07
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/64
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
148 words
A slide mount comprising a pair of substantially identically constructed frame halves, each frame half comprising a surface which, in the assembled condition of the mount, faces the other frame half and a plurality of interlocking elements on said surface for engaging with corresponding interlocking elements of the other frame half for positively interlocking the frame halves with one another, each interlocking element comprising mutually adjacent complementary male and female portions adapted to engage with female and male portions respectively of the corresponding interlocking element on the other of the frame halves, each female portion comprising means defining a part-cylindrical recess in said surface and each male portion comprising a hollow part-cylindrical portion and a web portion extending chordally of the hollow part-cylindrical portion and the web portions being disposed such that once the frame halves are interlocked, the web portions of corresponding, interlocked elements contact one another.
Claim 2
Dependent Claim
148 words
A slide mount comprising a pair of substantially identically constructed frame halves, each frame half comprising a surface which, in the assembled condition of the mount, faces the other frame half and a plurality of interlocking elements on said surface for engaging with corresponding interlocking elements of the other frame half for positively interlocking the frame halves with one another, each interlocking element comprising mutually adjacent complementary male and female portions adapted to engage with female and male portions respectively of the corresponding interlocking element on the other of the frame halves, each female portion comprising means defining a part-cylindrical recess in said surface and each male portion comprising a hollow part-cylindrical portion and a web portion extending chordally of the hollow part-cylindrical portion and the web portions being disposed such that once the frame halves are interlocked, the web portions of corresponding, interlocked elements contact one another.
Claim 3
Dependent Claim
28 words
A slide mount according to claim 1 in which each male portion and each female portion is semi-cylindrical whereby each element conforms generally to a respective cylindrical surface.
Claim 4
Dependent Claim
46 words
A slide mount according to claim 2 wherein each recess defining means has an axis and a floor and the web portion of the associated male portion is inclined with respect to said axis such that the width of the recess increases towards the floor thereof.
Claim 5
Dependent Claim
29 words
A slide mount according to claim 1 wherein each male portion further comprises a transverse web disposed between the first mentioned web portion thereof and the part-cylindrical portion thereof.
References Cited (Backward Citations)
US2959882A
Cited
US3990168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-12 | 1981-06-13 | 1981-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-12 | 1985-06-13 | 1985-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-12 | 1989-06-13 | 1989-12-13 | $7700.00 | Window Closed / Lapsed |