US2948121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable sectional pier
Assignee: Individual
•
Filing: 1957-11-15
•
Granted: 1960-08-09
•
Expires: 1977-11-15
Abstract
No abstract record available.
Inventors
- 👤 Karst Sylvester Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:31
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; E02B3/06; E02B3/068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1358951A
Cited
US1617865A
Cited
US2571337A
Cited
US2618124A
Cited
US2564123A
Cited
US2660271A
Cited
US2596854A
Cited
US2687617A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |