US3296992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ships
Assignee: Individual
•
Filing: 1964-11-16
•
Granted: 1967-01-10
•
Expires: 1984-11-16
Abstract
No abstract record available.
Inventors
- 👤 Lackenby Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:05
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/02; B63B1/10; B63B1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A SHIP COMPRISING THREE HULLS SPACED APART IN THE ATHWARTSHIPS DIRECTION AND RELATIVELY STAGGERED IN THE FOREAND-AFT DIRECTION, AND DECK MEANS INTERCONNECTING SAID HULLS, THE PORT AND STARBOARD HULLS CORRESPONDING IN SHAPE AND SIZE TO STARBOARD AND PORT HALVES, RESPECTIVELY, OF THE CENTRAL HULL CONSIDERED AS DIVIDED LONGITUDINALLY ALONG ITS CENTRAL VERTICAL PLANE, SAID PORT AND STARBOARD HULLS, THUS HAVING MUTUALLY-REMOTE FLAT OUTER SIDES AND SINGLE STARBOARD AND PORT BOWS, RESPECTIVELY, AND THE RELATIVE POSITIONS OF ADJACENT BOWS BEING SUCH THAT THE BOWS TO THE PORT AND STARBOARD HULLS ARE SPACED IN A FORE-AND-AFT DIRECTION RELATIVE TO THE BOW OF THE CENTRAL HULL A DISTANCE MORE THAN ONE-THIRD AND LESS THAN ONE-HALF THE LENGTH OF SAID CENTRAL HULL, WHEREBY, WHEN THE SHIP IS IN MOTION, THE WAVE SYSTEMS GENERATED BY ADJACENT CURVED HULL SURFACES ARE PHASED SO AS TO INTERFERE FAVOURABLY WITH ONE ANOTHER AND SO REDUCE THE WAVE-MAKING COMPONENT OF RESISTANCE TO PROGRESS OF THE SHIP.
Claim 2
Dependent Claim
157 words
A SHIP COMPRISING THREE HULLS SPACED APART IN THE ATHWARTSHIPS DIRECTION AND RELATIVELY STAGGERED IN THE FOREAND-AFT DIRECTION, AND DECK MEANS INTERCONNECTING SAID HULLS, THE PORT AND STARBOARD HULLS CORRESPONDING IN SHAPE AND SIZE TO STARBOARD AND PORT HALVES, RESPECTIVELY, OF THE CENTRAL HULL CONSIDERED AS DIVIDED LONGITUDINALLY ALONG ITS CENTRAL VERTICAL PLANE, SAID PORT AND STARBOARD HULLS, THUS HAVING MUTUALLY-REMOTE FLAT OUTER SIDES AND SINGLE STARBOARD AND PORT BOWS, RESPECTIVELY, AND THE RELATIVE POSITIONS OF ADJACENT BOWS BEING SUCH THAT THE BOWS TO THE PORT AND STARBOARD HULLS ARE SPACED IN A FORE-AND-AFT DIRECTION RELATIVE TO THE BOW OF THE CENTRAL HULL A DISTANCE MORE THAN ONE-THIRD AND LESS THAN ONE-HALF THE LENGTH OF SAID CENTRAL HULL, WHEREBY, WHEN THE SHIP IS IN MOTION, THE WAVE SYSTEMS GENERATED BY ADJACENT CURVED HULL SURFACES ARE PHASED SO AS TO INTERFERE FAVOURABLY WITH ONE ANOTHER AND SO REDUCE THE WAVE-MAKING COMPONENT OF RESISTANCE TO PROGRESS OF THE SHIP.
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) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |