Patent US3373791A successfully refreshed from Google Patents.
US3373791A
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Flexible curtain for movable partitions or walls and process and device relative thereto
Assignee: Milani Resine SpA
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Filing: 1964-11-24
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Granted: 1968-03-19
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Expires: 1984-11-24
Abstract
No abstract record available.
Inventors
- 👤 Milani Franco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:48
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/48; E06B3/481
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A FOLDABLE CURTAIN COMPRISING A PLURALITY OF SUCCESSIVE CONTIGUOUS ELEMENTS, EACH SAID ELEMENT BEING SUBSTANTIALLY ALIKE, SAID ELEMENT COMPRISING FIRST AND SECOND RIGID MEMBERS LONGITUDINALLY JOINED BY AN INTERMEDIATE FLEXIBLE THIRD MEMBER, COMPLEMENTARY ENGAGEMENT MEANS ON THE TERMINAL ENDS OF SAID FIRST AND SECOND MEMBERS FOR MUTUAL SUBSTANTIALLY PERMANENT ENGAGEMENT OF ONE ELEMENT WITH ITS ADJACENT ELEMENT, SAID TERMINAL ENDS COMPRISING ENLARGED EXTENSIONS OF CONSTANT CROSS SECTIONS, ONE OF SAID EXTENSIONS BEING SUBSTANTIALLY CHANNEL SHAPED FOR SLIDABLY RECEIVING THEREIN A CAMPLEMENTARY SUBSTANTIALLY TUBULAR EXTENSION OF THE ADJACENT ELEMENT, AND SUSPENSION MEANS AT ONE TRANSVERSE END OF EACH OF SAID ELEMENTS, SAID SUSPENSION MEANS COMPRISING MEANS FOR ENGAGING WITH AN INNER PORTION OF SAID TUBULAR EXTENSION
Claim 2
Dependent Claim
115 words
A FOLDABLE CURTAIN COMPRISING A PLURALITY OF SUCCESSIVE CONTIGUOUS ELEMENTS, EACH SAID ELEMENT BEING SUBSTANTIALLY ALIKE, SAID ELEMENT COMPRISING FIRST AND SECOND RIGID MEMBERS LONGITUDINALLY JOINED BY AN INTERMEDIATE FLEXIBLE THIRD MEMBER, COMPLEMENTARY ENGAGEMENT MEANS ON THE TERMINAL ENDS OF SAID FIRST AND SECOND MEMBERS FOR MUTUAL SUBSTANTIALLY PERMANENT ENGAGEMENT OF ONE ELEMENT WITH ITS ADJACENT ELEMENT, SAID TERMINAL ENDS COMPRISING ENLARGED EXTENSIONS OF CONSTANT CROSS SECTIONS, ONE OF SAID EXTENSIONS BEING SUBSTANTIALLY CHANNEL SHAPED FOR SLIDABLY RECEIVING THEREIN A CAMPLEMENTARY SUBSTANTIALLY TUBULAR EXTENSION OF THE ADJACENT ELEMENT, AND SUSPENSION MEANS AT ONE TRANSVERSE END OF EACH OF SAID ELEMENTS, SAID SUSPENSION MEANS COMPRISING MEANS FOR ENGAGING WITH AN INNER PORTION OF SAID TUBULAR EXTENSION
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |