US2596854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for raising and leveling forms for walls of concrete structures
Assignee: DOUBLE J MANUFACTURING Co Inc
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Filing: 1949-11-07
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Granted: 1952-05-13
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Expires: 1969-11-07
Abstract
No abstract record available.
Inventors
- 👤 John M Jack
- 👤 Gordon H Webb
- 👤 Louis H Jefferson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:46
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/06; E04G11/20; E04G11/22; E04G11/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |