Patent US2579455A successfully refreshed from Google Patents.
Patent US1497930A successfully refreshed from Google Patents.
US1497930A
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US
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Concrete form and support for the same
Assignee: HYDRAULIC PRESSED STEEL CO
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Filing: 1919-08-16
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Granted: 1924-06-17
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Expires: 1939-08-16
Abstract
No abstract record available.
Inventors
- 👤 Edwin M Mohrman
- 👤 Charles R Mcniece
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:41
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/36; E04G11/40; E04G11/46
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) | 1927-06-17 | 1927-12-17 | 1928-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-06-17 | 1931-12-17 | 1932-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-06-17 | 1935-12-17 | 1936-06-17 | $7700.00 | Window Closed / Lapsed |