US3122954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Venetian blind slats
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:50
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/38; E06B9/386; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0524; Y10T83/0538
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
THE METHOD OF PRODUCING A PLURALITY OF VENETIAN BLIND SLATS OF IDENTICAL CROSS SECTIONAL FORM AND WIDTH FROM A SHEET OF REINFORCED PLASTIC THAT IS CORRUGATED TO A SUBSTANTIALLY SINE WAVE CURVE IN CROSS SECTION WHICH INCLUDES THE STEPS OF CUTTING THE SHEET PARALLEL TO THE CORRUGATIONS ALONG A FIRST LINE OF SEVERANCE CENTERED ON A MAXIMUM AMPLITUDE POINT OF THE SWINE WAVE CURVE, FEEDING THE SHEET PERPENDICULAR TO SAID LINE OF SEVERANCE THROUGH A DISTANCE EQUAL SUBSTANTIALLY OF 270* WITH RESPECT TO THE SINE WAVE CURVE OF THE CORRUGATIONS, AND CUTTING SAID SHEET ALONG A SECOND LINE OF SEVERANCE PARALLEL TO AND SPACED FROM THE FIRST TIME OF SEVERANCE IN SUBSTANTIALLY 270* WITH RESPECT TO THE SINE WAVE CURVE OF SAID CORRUGATIONS.
Claim 2
Independent Claim
123 words
THE METHOD OF PRODUCING A PLURALITY OF VENETIAN BLIND SLATS OF IDENTICAL CROSS SECTIONAL FORM AND WIDTH FROM A SHEET OF REINFORCED PLASTIC THAT IS CORRUGATED TO A SUBSTANTIALLY SINE WAVE CURVE IN CROSS SECTION WHICH INCLUDES THE STEPS OF CUTTING THE SHEET PARALLEL TO THE CORRUGATIONS ALONG A FIRST LINE OF SEVERANCE CENTERED ON A MAXIMUM AMPLITUDE POINT OF THE SWINE WAVE CURVE, FEEDING THE SHEET PERPENDICULAR TO SAID LINE OF SEVERANCE THROUGH A DISTANCE EQUAL SUBSTANTIALLY OF 270* WITH RESPECT TO THE SINE WAVE CURVE OF THE CORRUGATIONS, AND CUTTING SAID SHEET ALONG A SECOND LINE OF SEVERANCE PARALLEL TO AND SPACED FROM THE FIRST TIME OF SEVERANCE IN SUBSTANTIALLY 270* WITH RESPECT TO THE SINE WAVE CURVE OF SAID CORRUGATIONS.
References Cited (Backward Citations)
US695553A
Cited
US955385A
Cited
US1698891A
Cited
US2088120A
Cited
US2315640A
Cited
US2620869A
Cited
US2854565A
Cited
US3007359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |