US2940153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete wall form securing means
Assignee: Individual
•
Filing: 1957-08-09
•
Granted: 1960-06-14
•
Expires: 1977-08-09
Abstract
No abstract record available.
Inventors
- 👤 Allen Homer Edgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:54
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/02; Y; Y10; Y10S; Y10S425/00; Y10S425/107
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US845635A
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US2017553A
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US2236616A
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US2237366A
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US2632228A
Cited
US2689101A
Cited
US2637889A
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US2711002A
Cited
US2882583A
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US2776464A
Cited
US2904870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |