US3186679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete form assembly and clamping means therefor
Assignee: Individual
•
Filing: 1961-04-13
•
Granted: 1965-06-01
•
Expires: 1981-04-13
Abstract
No abstract record available.
Inventors
- 👤 Chester I Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:10
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/0002; B28B7/0014; B28B11/00; B28B11/14; B28B23/00; B28B23/02; B28B23/04; B28B7/24; B28B7/241; B28B7/26; B28B7/263; Y; Y10; Y10S; Y10S425/00; Y10S425/029
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |