Patent US3266256A successfully refreshed from Google Patents.
US3266256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for laying submarine pipe lines
Assignee: Chevron USA Inc
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Filing: 1963-03-27
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Granted: 1966-08-16
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Expires: 1983-03-27
Abstract
No abstract record available.
Inventors
- 👤 William R Postlewaite
- 👤 Ludwig Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:10
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/12; F16L1/16; F16L1/18; F16L1/19; F16L1/20; F16L1/202; F16L1/203
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
THE METHOD OF LAYING A SUBMARINE PIPE LINE AT A PREDETERMINED LOCATION IN DEEP WATER ON AN UNDERWATER BOTTOM FROM A BARGE ON THE SURFACE OF A BODY OF WATER COMPRISING OBTAINING FOR A SELECTED PIPE THE MINIMUM RADIUS WITHIN THE ELASTIC LIMIT OF SAID PIPE OF THE CURVE OF TANGENCY OF A PIPE LINE MADE OF SAID PIPE IN CONTACT AT A LOWER END PORTION THEREOF WITH AN UNDERWATER BOTTOM AT SAID PREDETERMINED LOCATION WHILE SAID PIPE-LINE IS SUPPORTED AT AN UPPER END PORTION THEREOF IN TENSION FROM A BARGE AT THE SURFACE OF A BODY OF WATER, OBTAINING THE DEPTH OF SAID WATER AT SAID LOCATION, DETERMINING FOR SAID DEPTH OF WATER THE AMOUNT OF THE SLOPE OF SAID UPPER END PORTION OF SAID PIPE LINE WHEN THE PORTION OF SAID PIPE LINE ADJACENT SAID UNDERWATER BOTTOM IS DISPOSED IN THE SAID CURVE OF SAID RADIUS AND SAID PIPE LINE IS DISPOSED IN THE FORM OF A CATENARY BETWEN SAID BOTTOM AND SAID BARGE AND LAYING SAID PIPE LINE AT SAID LOCATION FROM SAID BARGE WHILE CONTROLLING THE TENSION IN SAID PIPE LINE TO ADJUST THE SLOPE
Claim 2
Independent Claim
189 words
THE METHOD OF LAYING A SUBMARINE PIPE LINE AT A PREDETERMINED LOCATION IN DEEP WATER ON AN UNDERWATER BOTTOM FROM A BARGE ON THE SURFACE OF A BODY OF WATER COMPRISING OBTAINING FOR A SELECTED PIPE THE MINIMUM RADIUS WITHIN THE ELASTIC LIMIT OF SAID PIPE OF THE CURVE OF TANGENCY OF A PIPE LINE MADE OF SAID PIPE IN CONTACT AT A LOWER END PORTION THEREOF WITH AN UNDERWATER BOTTOM AT SAID PREDETERMINED LOCATION WHILE SAID PIPE-LINE IS SUPPORTED AT AN UPPER END PORTION THEREOF IN TENSION FROM A BARGE AT THE SURFACE OF A BODY OF WATER, OBTAINING THE DEPTH OF SAID WATER AT SAID LOCATION, DETERMINING FOR SAID DEPTH OF WATER THE AMOUNT OF THE SLOPE OF SAID UPPER END PORTION OF SAID PIPE LINE WHEN THE PORTION OF SAID PIPE LINE ADJACENT SAID UNDERWATER BOTTOM IS DISPOSED IN THE SAID CURVE OF SAID RADIUS AND SAID PIPE LINE IS DISPOSED IN THE FORM OF A CATENARY BETWEN SAID BOTTOM AND SAID BARGE AND LAYING SAID PIPE LINE AT SAID LOCATION FROM SAID BARGE WHILE CONTROLLING THE TENSION IN SAID PIPE LINE TO ADJUST THE SLOPE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |