US3299847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pontoon structure
Assignee: Individual
•
Filing: 1965-08-24
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Granted: 1967-01-24
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Expires: 1985-08-24
Abstract
No abstract record available.
Inventors
- 👤 Lawrence A Bertholf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:11
CPC Classifications
B; B63; B63B; B63B35/00; B63B35/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
AN INTEGRAL HIGHLY MANEUVERABLE NON-SINKABLE PONTOON COMPRISING A LONGITUDINAL RECTANGULAR TUBULAR CASING MIDDLE PORTION INTEGRAL WITH A TUBULAR PROW PORTION, SAID PORTIONS HAVING AN INTERIOR BONDED WALL DISPOSED PARALLEL TO AND IN SPACED RELATIONSHIP TO THE TUBULAR TOP WALL TO FORM A UNITARY LONGITUDINAL GAS TANK, INTERNAL BRACING MEANS DISPOSED WITHIN SAID MIDDLE AND PROW PORTIONS ENGAGING THE FOUR SIDES OF SAID TUBULAR PORTIONS, BUOYANT MEANS FILLING THE CHAMBERS WITHIN SAID TUBULAR PORTIONS, AND A V-SHAPED KEEL EXTENDING THE LENGTH OF SAID MIDDLE AND PROW PORTIONS.
Claim 2
Dependent Claim
86 words
AN INTEGRAL HIGHLY MANEUVERABLE NON-SINKABLE PONTOON COMPRISING A LONGITUDINAL RECTANGULAR TUBULAR CASING MIDDLE PORTION INTEGRAL WITH A TUBULAR PROW PORTION, SAID PORTIONS HAVING AN INTERIOR BONDED WALL DISPOSED PARALLEL TO AND IN SPACED RELATIONSHIP TO THE TUBULAR TOP WALL TO FORM A UNITARY LONGITUDINAL GAS TANK, INTERNAL BRACING MEANS DISPOSED WITHIN SAID MIDDLE AND PROW PORTIONS ENGAGING THE FOUR SIDES OF SAID TUBULAR PORTIONS, BUOYANT MEANS FILLING THE CHAMBERS WITHIN SAID TUBULAR PORTIONS, AND A V-SHAPED KEEL EXTENDING THE LENGTH OF SAID MIDDLE AND PROW PORTIONS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |