Patent US2854841A successfully refreshed from Google Patents.
US2854841A
Expired / Lapsed
US
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Prefabricated building structure
Assignee: LAD E Inc
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Filing: 1953-03-20
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Granted: 1958-10-07
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Expires: 1973-03-20
Abstract
No abstract record available.
Inventors
- 👤 Frank E Simmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:30
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/02; E04B2/28; E04B2/30; E04B1/00; E04B1/38; E04B1/41; E04B1/4178; E04B1/4185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR519718A
Cited
FR571872A
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US1877898A
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US2014778A
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US2078144A
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US2205730A
Cited
GB565882A
Cited
GB610825A
Cited
US2627176A
Cited
CH264837A
Cited
FR978816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |