US2814459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aligning device
Assignee: CONCRETE FORMS Corp
•
Filing: 1954-09-14
•
Granted: 1957-11-26
•
Expires: 1974-09-14
Abstract
No abstract record available.
Inventors
- 👤 Hyre Robert Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:17
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/24; E04G21/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US168630A
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US467589A
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US1409755A
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US2411900A
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US2498816A
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US2532168A
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US2684824A
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US2777660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |