US2855978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair with resiliently supported seat
Assignee: HAMILTON Manufacturing CORP
•
Filing: 1953-06-24
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Granted: 1958-10-14
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Expires: 1973-06-24
Abstract
No abstract record available.
Inventors
- 👤 William S Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:23
CPC Classifications
A; A47; A47D; A47D13/00; A47D13/10; A47D13/107; A47C; A47C3/00; A47C3/02; A47C3/021; A47C3/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB376251A
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US2679282A
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US2694438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |