Patent US1840304A successfully refreshed from Google Patents.
US1840304A
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US
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Reenforced concrete structure
Assignee: BRANSON SYSTEM Inc
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Filing: 1928-05-31
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Granted: 1932-01-12
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Expires: 1948-05-31
Abstract
No abstract record available.
Inventors
- 👤 Branson Samuel Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:06
CPC Classifications
E; E04; E04B; E04B5/00; E04B5/16; E04B5/17; E04B5/23
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) | 1935-01-11 | 1935-07-13 | 1936-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-01-11 | 1939-07-13 | 1940-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-01-11 | 1943-07-13 | 1944-01-12 | $7700.00 | Window Closed / Lapsed |