US3572277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lengthwise divisible boat
Assignee: Material Service Corp
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Filing: 1969-03-28
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Granted: 1971-03-23
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Expires: 1989-03-28
Abstract
Abstract A BOAT IS PROVIDED WHICH IS DIVISIBLE INTO TWO OR MORE SEPARATELY BOUYANT SECTIONS LENGTHWISE. THESE SECTIONS ARE CONNECTED BY MEANS OF A MATING BALL AND CHANNEL CONNECTING DEVICE IN OPPOSING WALLS OF THE SECTIONS, AND POSTS AT THE TOP OF THE WALLS WHICH BEAR THE MAIN LOAD IN TEN- SION. THE SECTIONS AR DESIGNED TO CANT OUTWARDLY FROM EACH OTHER WHEN SEPARATE SO THAT MOST OF THE LOAD WHEN CONNECTED IS BORNE BY THE POSTS AT THE TOP.
Inventors
- 👤 Sigurd Schousboe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:53
CPC Classifications
B; B63; B63B; B63B35/00; B63B35/28; B63B3/00; B63B3/02; B63B3/08; B63B2035/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |