US2587985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall and method of making it
Assignee: Individual
•
Filing: 1946-04-19
•
Granted: 1952-03-04
•
Expires: 1966-04-19
Abstract
No abstract record available.
Inventors
- 👤 Elmendorf Armin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:55
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/38; E04C2/386
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1885607A
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US1819775A
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US2157622A
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US2107240A
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US2303003A
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US2291498A
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US2342682A
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US2271355A
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US2295248A
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US2373239A
Cited
US2498403A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-04 | 1955-09-03 | 1956-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-04 | 1959-09-03 | 1960-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-04 | 1963-09-03 | 1964-03-04 | $7700.00 | Window Closed / Lapsed |