US2794690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansible drawer supports
Assignee: Steelcase Inc
•
Filing: 1952-10-01
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Granted: 1957-06-04
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Expires: 1972-10-01
Abstract
No abstract record available.
Inventors
- 👤 Earle C Bullock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:56
CPC Classifications
F; F16; F16C; F16C29/00; F16C29/04; A; A47; A47B; A47B88/00; A47B88/40; A47B88/49; A47B88/493; A47B2210/00; A47B2210/0002; A47B2210/0029; A47B2210/0032; A47B2210/0043; A47B2210/0051; A47B2210/0059
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1005055A
Cited
FR522087A
Cited
US2032054A
Cited
US2162318A
Cited
US2174181A
Cited
US2346167A
Cited
FR921253A
Cited
US2606090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |