US2452182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Writing arm for collapsible chairs
Assignee: Individual
•
Filing: 1946-05-15
•
Granted: 1948-10-26
•
Expires: 1966-05-15
Abstract
No abstract record available.
Inventors
- 👤 William T Clawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:34
CPC Classifications
A; A47; A47B; A47B3/00; A47B3/14; A47C; A47C7/00; A47C7/62; A47C7/68; A47C7/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US125827A
Cited
US171528A
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US701728A
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US957552A
Cited
US1691053A
Cited
US1744736A
Cited
US2048014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-26 | 1952-04-26 | 1952-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-26 | 1956-04-26 | 1956-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-26 | 1960-04-26 | 1960-10-26 | $7700.00 | Window Closed / Lapsed |