US2480667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire spring for upholstered spring structures
Assignee: Universal Wire Spring Co
•
Filing: 1944-02-21
•
Granted: 1949-08-30
•
Expires: 1964-02-21
Abstract
No abstract record available.
Inventors
- 👤 William H Neely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:27
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/28; A47C7/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191213849A
Cited
GB271629A
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FR621947A
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GB472607A
Cited
US2122979A
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US2234253A
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US2203598A
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US2214136A
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US2279336A
Cited
US2308772A
Cited
US2384191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-29 | 1953-02-28 | 1953-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-29 | 1957-02-28 | 1957-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-29 | 1961-02-28 | 1961-08-30 | $7700.00 | Window Closed / Lapsed |