US2697235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of constructing boats
Assignee: Individual
•
Filing: 1952-07-14
•
Granted: 1954-12-21
•
Expires: 1972-07-14
Abstract
No abstract record available.
Inventors
- 👤 Ole K Gronli
- 👤 Gronli Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:18
CPC Classifications
B; B63; B63B; B63B3/00; B63B3/14; B63B3/40; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49622
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2293A
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US542800A
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US573522A
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US613693A
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US781072A
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US1119101A
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US1885198A
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US1941586A
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GB445251A
Cited
US2110017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |