Patent US3261038A successfully refreshed from Google Patents.
US3261038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boat
Assignee: HANS KLEPPER CORP
•
Filing: 1965-02-17
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Granted: 1966-07-19
•
Expires: 1985-02-17
Abstract
No abstract record available.
Inventors
- 👤 Klepper Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:57
CPC Classifications
B; B63; B63B; B63B7/00; B63B7/06; B63B7/08; B63B7/082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A BOAT COMPRISING, IN COMBINATION: (A) A SHELL HAVING TWO LONGITUDINAL SIDE WALLS OF SHAPE RETAINING MATERIAL, (1) EACH SIDE WALL BEING OF SUBSTANTIALLY CIRCULARLY ARCUATE CROSS SECTION ABOUT A LONGITUDINALLY EXTENDING AXIS, THE OUTER FACE OF SAID WALL BEING CONCAVE; AND (B) A FLOTATION TUBE CONFORMINGLY ENGAGING EACH OF SAID FACES ALONG AN ARC ABOUT SAID AXIS EXTENDING FROM A SUBSTANTIALLY HORIZONTAL PLANE THROUGH SAID AXIS UPWARDLY AT LEAST TO A SUBSTANTIALLY VERTICAL PLANE THROUGH SAID AXIS.
Claim 2
Dependent Claim
78 words
A BOAT COMPRISING, IN COMBINATION: (A) A SHELL HAVING TWO LONGITUDINAL SIDE WALLS OF SHAPE RETAINING MATERIAL, (1) EACH SIDE WALL BEING OF SUBSTANTIALLY CIRCULARLY ARCUATE CROSS SECTION ABOUT A LONGITUDINALLY EXTENDING AXIS, THE OUTER FACE OF SAID WALL BEING CONCAVE; AND (B) A FLOTATION TUBE CONFORMINGLY ENGAGING EACH OF SAID FACES ALONG AN ARC ABOUT SAID AXIS EXTENDING FROM A SUBSTANTIALLY HORIZONTAL PLANE THROUGH SAID AXIS UPWARDLY AT LEAST TO A SUBSTANTIALLY VERTICAL PLANE THROUGH SAID AXIS.
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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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |