Patent US2540305A successfully refreshed from Google Patents.
US2540305A
Expired / Lapsed
US
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Wall and partition construction
Assignee: Individual
•
Filing: 1947-12-11
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Granted: 1951-02-06
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Expires: 1967-12-11
Abstract
No abstract record available.
Inventors
- 👤 L G Tomlinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:29
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/84; E04B2/842; E04B2/845; E04B2/74; E04B2/7401; E04B2/76; E04B2/766; E04B2/82; E04B2/825; E04B2/72; E04B2/723; E04B2002/7488
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2000243A
Cited
US1981240A
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US2078620A
Cited
US1998688A
Cited
US2275109A
Cited
US2331745A
Cited
US2279898A
Cited
US2349158A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |