US3265117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skylight venetian blind with improved coaction between the ladders and the slats
Assignee: Levolor Corp
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Filing: 1963-12-09
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Granted: 1966-08-09
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Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 Hans K Lorentzen
- 👤 Joseph A Anderle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:15
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/28
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
97 words
A VENETIAN BLIND LADDER COMPRISING: A PAIR OF FLEXIBLE SIDE TAPES, A SERIES OF FLEXIBLE CROSS TAPES INTERCONNECTING THE SIDE TAPES, AND STRUT-TIES ON CERTAIN OF THE CROSS TAPES, EACH STRUT-TIE BEING COMPOSED OF A TROUGHSHAPED PIECE OF SHEET METAL POSITIONED ASTRIDE OF THE CROSS TAPE WITH ONE EDGE OF THE CROSS TAPE IN THE BOTTOM OF THE TROUGH FORMATION, THE LENGTH OF THE TROUGH FORMATION BEING SOMEWHAT LESS THAN THE LENGTH OF THE CROSS TAPE, AND THE TROUGH FORMATION BEING COLLAPSED INTO CLOSE PROXIMITY TO THE FACES OF THE CROSS TAPE AND MAKING FRICTIONAL ENGAGEMENT THEREWITH.
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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |