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US2909251A
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Runners for nonload-bearing partitions
Assignee: United States Gypsum Co
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Filing: 1956-10-09
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Granted: 1959-10-20
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Expires: 1976-10-09
Abstract
No abstract record available.
Inventors
- 👤 Nelsson Nels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:17
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1472194A
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US1778337A
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US2097484A
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US1981240A
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US1982104A
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US2269384A
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US2682087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |