US2557313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device for chairs
Assignee: Individual
•
Filing: 1947-01-06
•
Granted: 1951-06-19
•
Expires: 1967-01-06
Abstract
No abstract record available.
Inventors
- 👤 Quilter John Raymond Cuthbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:19
CPC Classifications
B; B60; B60R; B60R22/00; B60R22/34; B60R22/36; B60R22/415; B60R22/18; B60R22/26; B60R22/405
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1270636A
Cited
US1948158A
Cited
US2195334A
Cited
US2292386A
Cited
US2394523A
Cited
US2403653A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |