US2921622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair
Assignee: American Seating Co
•
Filing: 1958-04-14
•
Granted: 1960-01-19
•
Expires: 1978-04-14
Abstract
No abstract record available.
Inventors
- 👤 Henrikson Bror William
- 👤 Benjamin J Oom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:37
CPC Classifications
A; A47; A47B; A47B91/00; A47B91/08; A47C; A47C3/00; A47C3/02; A47C3/025; A47C3/0252
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US163705A
Cited
US321816A
Cited
US1960436A
Cited
US2046858A
Cited
US2362746A
Cited
US2522394A
Cited
US2633897A
Cited
US2568896A
Cited
US2808875A
Cited
FR1131978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |