US2819863A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waler bracket for concrete forms
Assignee: Individual
•
Filing: 1954-05-27
•
Granted: 1958-01-14
•
Expires: 1974-05-27
Abstract
No abstract record available.
Inventors
- 👤 Lemuel R Vines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:07
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/0002; B28B7/0014; E; E04; E04G; E04G17/00; E04G17/02; Y; Y10; Y10T; Y10T403/00; Y10T403/71; Y10T403/7194
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1875366A
Cited
DE661705C
Cited
US1554029A
Cited
US1680923A
Cited
US1649355A
Cited
US2236616A
Cited
US2330990A
Cited
US2452203A
Cited
GB666476A
Cited
US2711002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |