US2968928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating barrier
Assignee: Individual
•
Filing: 1955-03-22
•
Granted: 1961-01-24
•
Expires: 1975-03-22
Abstract
No abstract record available.
Inventors
- 👤 Wicklander Anders Emanuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:23
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/08; E02B15/0814; E02B15/0821; E02B15/0857; E02B15/0885; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/924
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1205033A
Cited
US1256398A
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US1415351A
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US1453918A
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US2240567A
Cited
US2366140A
Cited
US2367141A
Cited
US2682151A
Cited
US2684341A
Cited
US2710978A
Cited
US2660194A
Cited
US2719752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |