US3205552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete forms
Assignee: JOHNSON
•
Filing: 1963-10-10
•
Granted: 1965-09-14
•
Expires: 1983-10-10
Abstract
No abstract record available.
Inventors
- 👤 Stanley G Johnson
- 👤 Arthur W Kurtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:05
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2828526A
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US2903777A
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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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |