US2921825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable leg
Assignee: Individual
•
Filing: 1954-04-12
•
Granted: 1960-01-19
•
Expires: 1974-04-12
Abstract
No abstract record available.
Inventors
- 👤 George W Spiegel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:41
CPC Classifications
A; A47; A47B; A47B3/00; A47B3/08; A47B3/0809; A47B3/0812; A47B2003/0821; A47B2003/0824; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32114; Y10T403/32254; Y10T403/32262; Y10T403/32418
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US729432A
Cited
US919981A
Cited
US1522830A
Cited
US1809564A
Cited
US1753506A
Cited
US1820592A
Cited
US1938507A
Cited
US2425162A
Cited
US2487401A
Cited
CH264551A
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 |