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Patent US2794492A successfully refreshed from Google Patents.
US2794492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding chair
Assignee: HAMILTON Manufacturing CORP
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Filing: 1955-05-16
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Granted: 1957-06-04
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Expires: 1975-05-16
Abstract
No abstract record available.
Inventors
- 👤 Bertis F Hamilton
- 👤 Earl F Hamilton
- 👤 William S Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:46
CPC Classifications
A; A47; A47C; A47C4/00; A47C4/04; A47C4/18; A47C4/20; A47C4/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |