Patent US2545844A successfully refreshed from Google Patents.
US2545844A
Expired / Lapsed
US
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Automatically adjustable bookrack
Assignee: Individual
•
Filing: 1947-12-22
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Granted: 1951-03-20
•
Expires: 1967-12-22
Abstract
No abstract record available.
Inventors
- 👤 Cougias Gus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:15
CPC Classifications
A; A47; A47B; A47B65/00; A47B65/10; A47B65/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1317550A
Cited
FR359275A
Cited
FR453516A
Cited
US1237101A
Cited
GB116584A
Cited
US2110299A
Cited
US2134606A
Cited
US2294595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |