US2568055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cushion assembly with auxiliary reinforcing spring
Assignee: L A Young Spring & Wire Co
•
Filing: 1948-01-05
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Granted: 1951-09-18
•
Expires: 1968-01-05
Abstract
No abstract record available.
Inventors
- 👤 William A Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:02
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/04; A47C27/06; A47C27/063; A47C27/064; B; B60; B60N; B60N2/00; B60N2/70; B60N2/7023; B60N2/7035; B60N2/7047; B60N2/7058; B60N2/7064
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE18860E
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US999816A
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US1192510A
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US1776400A
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US1963670A
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US1930697A
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US2264607A
Cited
US2320153A
Cited
US2336975A
Cited
US2304652A
Cited
US2334305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |