Patent US2520741A successfully refreshed from Google Patents.
US2520741A
Expired / Lapsed
US
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Swinging lawn chair
Assignee: Individual
•
Filing: 1946-04-01
•
Granted: 1950-08-29
•
Expires: 1966-04-01
Abstract
No abstract record available.
Inventors
- 👤 Ransom Z Snell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:14
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/02; A47C3/025; A47C3/0255
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US190388A
Cited
US376256A
Cited
US634030A
Cited
US766836A
Cited
US1215609A
Cited
US1544187A
Cited
US1688587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |