Patent US2738247A successfully refreshed from Google Patents.
US2738247A
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Suspension for extendable typewriter shelf
Assignee: CORRY JAMESTOWN Manufacturing CORP
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Filing: 1952-12-04
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Granted: 1956-03-13
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Expires: 1972-12-04
Abstract
No abstract record available.
Inventors
- 👤 Howard E Hutzelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:42
CPC Classifications
A; A47; A47B; A47B21/00; A47B21/02; A47B21/03; A47B21/0314; A47B2021/0321; A47B2021/0328; A47B2021/0335
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR743300A
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US1072121A
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US1137261A
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US1491781A
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FR576906A
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US1606975A
Cited
US2243087A
Cited
US2358917A
Cited
US2322648A
Cited
US2642327A
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US2585566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |