US3393524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submerging vessels
Assignee: Brown Brothers and Co Ltd
•
Filing: 1964-11-25
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Granted: 1968-07-23
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Expires: 1984-11-25
Abstract
No abstract record available.
Inventors
- 👤 Terrell Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:42
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/12; F16L1/16; F16L1/161; B; B63; B63C; B63C11/00; B63C11/34; B63C11/44; E; E02; E02F; E02F3/00; E02F3/04; E02F3/88; E02F3/8858; E02F5/00; E02F5/02; E02F5/10; E02F5/104; E02F5/105; E02F5/107; E02F9/00; E02F9/02; E02F9/04; E02F9/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A SUBMERGING VESSEL COMPRISING A PAIR OF PARTS, MEANS FOR ADJUSTING THE BUOYANCE OF THE VESSEL BETWEEN A POSITIVE VALUE AND A NEGATIVE VALUE ENBALING THE VESSEL TO SUBMERGE AND SUFACE ITSELT AND MEANS LINKING SAID PARTS TOGETHER FOR CONTROLLED WALKING MOVMENT ALONG A SUBMERGED SURFACE WITH EACH PART ALERNATELY RESTING ON
Claim 2
Dependent Claim
52 words
A SUBMERGING VESSEL COMPRISING A PAIR OF PARTS, MEANS FOR ADJUSTING THE BUOYANCE OF THE VESSEL BETWEEN A POSITIVE VALUE AND A NEGATIVE VALUE ENBALING THE VESSEL TO SUBMERGE AND SUFACE ITSELT AND MEANS LINKING SAID PARTS TOGETHER FOR CONTROLLED WALKING MOVMENT ALONG A SUBMERGED SURFACE WITH EACH PART ALERNATELY RESTING ON
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) | 1971-07-23 | 1972-01-22 | 1972-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-23 | 1976-01-22 | 1976-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-23 | 1980-01-22 | 1980-07-23 | $7700.00 | Window Closed / Lapsed |