Patent US3299846A successfully refreshed from Google Patents.
US3299846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable floating support columns
Assignee: Canadian Patents and Development Ltd
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Filing: 1965-01-18
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Granted: 1967-01-24
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Expires: 1985-01-18
Abstract
No abstract record available.
Inventors
- 👤 Jarlan Gerard Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:54
CPC Classifications
B; B63; B63B; B63B35/00; B63B35/44; B63B35/4413; B63B39/00; B63B39/005; B63B1/00; B63B1/02; B63B1/04; B63B2001/044; B63B39/06; B63B2039/067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A FLOATING SUPPORT OF SPAN AT LEAST SIXTY FEET COMPRISING AN UPRIGHT CUP-LIKE BODY OF TRANSVERSE DIMENSION GREATER THAN ITS HEIGHT BUT LESS THAN TWICE THE HEIGHT, SAID BODY HAVING A SHELL WALL ABOUT THREE TO FOUR FEET THICK, SAID WALL BEING HOLLOW AND EXTENSIVELY PERFORATED OVER ITS SURFACE BY A LARGE PLURALITY OF TRANSVERSE JETGUIDING CHANNELS, AND A TRANSVERSELY PERFORATED DISC BOTTOM CLOSING THE LOWER END OF SAID BODY.
Claim 2
Dependent Claim
70 words
A FLOATING SUPPORT OF SPAN AT LEAST SIXTY FEET COMPRISING AN UPRIGHT CUP-LIKE BODY OF TRANSVERSE DIMENSION GREATER THAN ITS HEIGHT BUT LESS THAN TWICE THE HEIGHT, SAID BODY HAVING A SHELL WALL ABOUT THREE TO FOUR FEET THICK, SAID WALL BEING HOLLOW AND EXTENSIVELY PERFORATED OVER ITS SURFACE BY A LARGE PLURALITY OF TRANSVERSE JETGUIDING CHANNELS, AND A TRANSVERSELY PERFORATED DISC BOTTOM CLOSING THE LOWER END OF SAID BODY.
References Cited (Backward Citations)
US2476309A
Cited
US2488542A
Cited
US2475888A
Cited
US3191388A
Cited
US3191570A
Cited
US3224401A
Cited
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 |