US2940804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamp means for joining vertically offset metal tops
Assignee: Steelcase Inc
•
Filing: 1955-10-17
•
Granted: 1960-06-14
•
Expires: 1975-10-17
Abstract
No abstract record available.
Inventors
- 👤 Earle C Bullock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:47
CPC Classifications
A; A47; A47B; A47B17/00; A47B17/003; A47B17/03; A47B17/033
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US854667A
Cited
US1110948A
Cited
US1412788A
Cited
US1741904A
Cited
US2158467A
Cited
US2223557A
Cited
US2701659A
Cited
US2759779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |