US2694441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable seat
Assignee: Individual
•
Filing: 1953-06-30
•
Granted: 1954-11-16
•
Expires: 1973-06-30
Abstract
No abstract record available.
Inventors
- 👤 Degenfelder Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:20
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1860096A
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US1852128A
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US1938226A
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US1944335A
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US1927491A
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US1914006A
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US2021242A
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US2147958A
Cited
US2291806A
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US2484454A
Cited
US2509420A
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US2545840A
Cited
US2615500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-15 | 1958-05-17 | 1958-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-15 | 1962-05-17 | 1962-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-15 | 1966-05-17 | 1966-11-16 | $7700.00 | Window Closed / Lapsed |