US3218935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete finishing tool
Assignee: FLUID TEC CO
•
Filing: 1962-11-23
•
Granted: 1965-11-23
•
Expires: 1982-11-23
Abstract
No abstract record available.
Inventors
- 👤 York John Robert
- 👤 George W Krause
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:27
CPC Classifications
E; E01; E01C; E01C23/00; E01C23/06; E01C23/08; E01C23/085; E01C23/0855; E04; E04F; E04F21/00; E04F21/20; E04F21/24; E04F21/245; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/86413
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US413005A
Cited
US1623780A
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US2287179A
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US2302232A
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US2635396A
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US2688336A
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US2750463A
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US2785661A
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US3017057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |