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US2294890A
Expired / Lapsed
US
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Structural corrugated building unit and wall fabricated therefrom
Assignee: JOSEPHINE S BRINKER
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Filing: 1938-12-21
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Granted: 1942-09-08
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Expires: 1958-12-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Brinker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:48
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/02; E04B1/08; E04C; E04C3/00; E04C3/02; E04C3/04; E04C3/06; E04C3/07; E04B1/343; E04B1/344
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-09-07 | 1946-03-09 | 1946-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-09-07 | 1950-03-09 | 1950-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-09-07 | 1954-03-09 | 1954-09-08 | $7700.00 | Window Closed / Lapsed |