US3056230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable lectern
Assignee: EIDP Inc
•
Filing: 1960-03-01
•
Granted: 1962-10-02
•
Expires: 1980-03-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Roberts Wyckoff Brokaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:15
CPC Classifications
A; A47; A47B; A47B19/00; A47B19/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US575270A
Cited
CH9550A
Cited
GB229431A
Cited
US1675060A
Cited
US1710330A
Cited
US2229012A
Cited
US2380780A
Cited
US2490356A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |