Patent US2797973A successfully refreshed from Google Patents.
US2797973A
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US
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Chair tray having pivoted, spring biased, arm-engaging clamps
Assignee: ANTHONY S BARBERA
•
Filing: 1955-02-23
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Granted: 1957-07-02
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Expires: 1975-02-23
Abstract
No abstract record available.
Inventors
- 👤 Emmett L Culpepper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:08
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/62; A47C7/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191100502A
Cited
US1713116A
Cited
US2501580A
Cited
US2555130A
Cited
GB643301A
Cited
US2647716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |