US2766855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demountable metal partition
Assignee: STEEL PARTITIONS Inc
•
Filing: 1951-05-24
•
Granted: 1956-10-16
•
Expires: 1971-05-24
Abstract
No abstract record available.
Inventors
- 👤 Robert C Johnson
- 👤 Ralph S Millard
- 👤 Reuben T Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:15
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/76; E04B2/78; E04B2/7854
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1718252A
Cited
US1842144A
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US1853090A
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US1948602A
Cited
US2043174A
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US2202861A
Cited
US2169273A
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US2360500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |