Patent US2776177A successfully refreshed from Google Patents.
US2776177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desk attachment for bleacher seats
Assignee: Individual
•
Filing: 1955-07-29
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Granted: 1957-01-01
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Expires: 1975-07-29
Abstract
No abstract record available.
Inventors
- 👤 Donald E Vance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:43
CPC Classifications
A; A47; A47B; A47B23/00; A47C; A47C7/00; A47C7/62; A47C7/68; A47C7/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US639611A
Cited
US1008037A
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US1487465A
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US1938638A
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US1839291A
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US2306294A
Cited
US2569729A
Cited
US2555130A
Cited
US2669495A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |