Patent US3472034A successfully refreshed from Google Patents.
US3472034A
Expired / Lapsed
US
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Method and apparatus for controlling pipeline laying operations
Assignee: Brown and Root Inc
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Filing: 1967-02-06
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Granted: 1969-10-14
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Expires: 1987-02-06
Abstract
No abstract record available.
Inventors
- 👤 Joseph Benton Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:02
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/12; F16L1/16; F16L1/18; F16L1/19; B; B63; B63B; B63B35/00; B63B35/03; B63H; B63H25/00; B63H25/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2659549A
Cited
US2910835A
Cited
US3214921A
Cited
US3237438A
Cited
US3266256A
Cited
US3331212A
Cited
US3321925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |