US3333905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing device for a venetian blind
Assignee: Hunter Douglas International Ltd
•
Filing: 1964-11-12
•
Granted: 1967-08-01
•
Expires: 1984-11-12
Abstract
No abstract record available.
Inventors
- 👤 Petrus J Hennequin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:28
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/28; E06B9/30; E06B9/32; E06B9/322; E06B9/303; E06B9/307; E06B9/323
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A BEARING DEVICE FOR AN OPERATING SHAFT OF A VENETIAN BLIND, SAID BEARING DEVICE HAVING SUBSTANTIALLY A U SHAPE, AT LEAST TWO RESILIENT LEGS FORMING THE UPSTANDING PORTIONS OF SAID U SHAPE, A ROLLER ROTATABLY MOUNTED BETWEEN SAID LEGS, SAID ROLLER HAVING A HOLE FOR ACCOMMODATING AN OPERATING SHAFT, SAID LEGS HAVING CHAMFERED FREE ENDS, THE SMALLEST DISTANCE BETWEEN THE CHAMFERED FREE ENDS OF SAID FREE LEGS BEING LESS THAN THE LENGTH OF THE ROLLER FITTING BETWEEN SAID LEGS.
Claim 2
Dependent Claim
79 words
A BEARING DEVICE FOR AN OPERATING SHAFT OF A VENETIAN BLIND, SAID BEARING DEVICE HAVING SUBSTANTIALLY A U SHAPE, AT LEAST TWO RESILIENT LEGS FORMING THE UPSTANDING PORTIONS OF SAID U SHAPE, A ROLLER ROTATABLY MOUNTED BETWEEN SAID LEGS, SAID ROLLER HAVING A HOLE FOR ACCOMMODATING AN OPERATING SHAFT, SAID LEGS HAVING CHAMFERED FREE ENDS, THE SMALLEST DISTANCE BETWEEN THE CHAMFERED FREE ENDS OF SAID FREE LEGS BEING LESS THAN THE LENGTH OF THE ROLLER FITTING BETWEEN SAID LEGS.
References Cited (Backward Citations)
US2396425A
Cited
CA626701A
Cited
GB671799A
Cited
GB765419A
Cited
GB788452A
Cited
US2868594A
Cited
US3042461A
Cited
GB878112A
Cited
US2999537A
Cited
US3053368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |