Patent US1715476A successfully refreshed from Google Patents.
Patent US2596131A successfully refreshed from Google Patents.
US2596131A
Expired / Lapsed
US
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Combination bookholder and pocket construction
Assignee: THOMAS
•
Filing: 1947-08-08
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Granted: 1952-05-13
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Expires: 1967-08-08
Abstract
No abstract record available.
Inventors
- 👤 Darby William Sinkler
- 👤 Thomas Paul Bentley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:35
CPC Classifications
B; B42; B42D; B42D3/00; B42D3/12; B42D3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US501431A
Cited
US575522A
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FR347788A
Cited
US1536937A
Cited
US2024363A
Cited
US2219807A
Cited
US2249558A
Cited
US2397366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |