Patent US3551983A successfully refreshed from Google Patents.
US3551983A
Expired / Lapsed
US
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Pipe guide with fixed position rollers
Assignee: Individual
•
Filing: 1968-05-03
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Granted: 1971-01-05
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Expires: 1988-05-03
Abstract
Abstract A PIPE GUIDE CONSISTING OF THREE PIVOTALLY INTERCONNECTED ARCUATE SECTIONS RELEASABLY CLAMPABLE IN SURROUNDING RELATION TO ONE END OF A CASING FOR THE GUIDED INSERTION OF A PIPE THEREIN. THE GUIDE MOUNTS SEVEN ROLLERS POSITIONED PERIPHERALLY THEREABOUT AND PROJECTING INWARDLY THEREOF FOR ROLLING SUPPORT OF AN INSERTED PIPE. THE GUIDE INCLUDES ABUTMENT MEANS FOR PROPER ALIGNMENT THEREOF WITH THE END OF THE CASING AND LATCHES FOR RELEASABLY CLAMPING THE GUIDE TO THE CASING.
Inventors
- 👤 Bryan J Newbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:19
CPC Classifications
F; F16; F16L; F16L3/00; F16L3/16; F16L3/18; F16L7/00; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53652; Y10T29/53983
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |