Patent US3141497A successfully refreshed from Google Patents.
US3141497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Venetian blind
Assignee: Griesser AG
•
Filing: 1959-08-31
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Granted: 1964-07-21
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Expires: 1979-08-31
Abstract
No abstract record available.
Inventors
- 👤 Griesser Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:46
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/28; E06B9/30; E06B9/303; E06B9/308; E06B9/38; E06B9/384; E06B9/32; E06B9/322; E06B2009/3225; E06B2009/3227
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A VENETIAN BLIND COMPRISING A WINDING SHAFT, A PLURALITY OF SLATS, PULL MEMBERS IN THE FORM OF A SINGLE CORD ENGAGING THE LOWERMOST OF SAID SLATS AND EXTENDING UPWARDLY TO THE WINDING SHAFT THROUGH OPENINGS IN THE SLATS, SAID PULL MEMBERS BEING ADAPTED TO BE WOUND AND UNWOUND AROUND SAID WINDING SHAFT, SUPPORTING MEMBERS SUPPORTING THE SLATS AND ADAPTED TO BE COUPLED BY FRICTIONAL ENGAGEMENT WITH THE WINDING SHAFT FOR PIVOTING THE SLATS, SAID SUPPORTING MEMBERS ENGAGING THE EDGES OF THE SLATS AND LYING IN FORM OF A LOOP ON THE WINDING SHAFT AT THE SAME PORTION THEREOF AS THE PULL MEMBERS, THE RESPECTIVE SUPPORTING MEMBERS LYING IN A PLANE WITH THE RESPECTIVE PULL MEMBERS, SAID PLANE BEING PERPENDICULAR TO THE WINDING SHAFT, SAID PULL MEMBERS AND SAID SUPPORTING MEMBERS BEING OF A ROPE-LIKE MATERIAL.
Claim 2
Dependent Claim
135 words
A VENETIAN BLIND COMPRISING A WINDING SHAFT, A PLURALITY OF SLATS, PULL MEMBERS IN THE FORM OF A SINGLE CORD ENGAGING THE LOWERMOST OF SAID SLATS AND EXTENDING UPWARDLY TO THE WINDING SHAFT THROUGH OPENINGS IN THE SLATS, SAID PULL MEMBERS BEING ADAPTED TO BE WOUND AND UNWOUND AROUND SAID WINDING SHAFT, SUPPORTING MEMBERS SUPPORTING THE SLATS AND ADAPTED TO BE COUPLED BY FRICTIONAL ENGAGEMENT WITH THE WINDING SHAFT FOR PIVOTING THE SLATS, SAID SUPPORTING MEMBERS ENGAGING THE EDGES OF THE SLATS AND LYING IN FORM OF A LOOP ON THE WINDING SHAFT AT THE SAME PORTION THEREOF AS THE PULL MEMBERS, THE RESPECTIVE SUPPORTING MEMBERS LYING IN A PLANE WITH THE RESPECTIVE PULL MEMBERS, SAID PLANE BEING PERPENDICULAR TO THE WINDING SHAFT, SAID PULL MEMBERS AND SAID SUPPORTING MEMBERS BEING OF A ROPE-LIKE MATERIAL.
References Cited (Backward Citations)
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Cited
US1978152A
Cited
US2152116A
Cited
US2374591A
Cited
US2405255A
Cited
US2520629A
Cited
US2598887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |