US3450435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furniture construction
Assignee: Art Metal Knoll Corp
•
Filing: 1967-03-31
•
Granted: 1969-06-17
•
Expires: 1987-03-31
Abstract
No abstract record available.
Inventors
- 👤 William I Stephens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:29
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/16; A47C5/00; A47C5/12; Y; Y10; Y10T; Y10T29/00; Y10T29/48; Y10T29/481
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB667316A
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US2726713A
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GB825376A
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US3188663A
Cited
US3152836A
Cited
GB1080366A
Cited
US3300251A
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US3328084A
Cited
US3318635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |