US2812801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible chair
Assignee: UNIVERSAL CONVERTING Corp
•
Filing: 1955-11-15
•
Granted: 1957-11-12
•
Expires: 1975-11-15
Abstract
No abstract record available.
Inventors
- 👤 Heyman Sam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:22
CPC Classifications
A; A47; A47C; A47C4/00; A47C4/28; A47C4/42; A47C4/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA475275A
Cited
US2709481A
Cited
US2714925A
Cited
GB189609036A
Cited
GB321951A
Cited
US2155522A
Cited
US2213590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |