Patent US3104094A successfully refreshed from Google Patents.
US3104094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire line guide apparatus
Assignee: Rowan Drilling Co Inc
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Filing: 1961-08-17
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Granted: 1963-09-17
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Expires: 1981-08-17
Abstract
No abstract record available.
Inventors
- 👤 Jack H Liem
- 👤 Rowe Marcus Gilbert
- 👤 Clifford W Yancey
- 👤 Willard E Wysick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:18
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/02; E21B19/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
124 words
WIRE LINE GUIDE APPARATUS ADAPTED FOR MAINTAINING A WIRE LINE CENTERED AT THE ENTRANCE TO A CONDUIT AND OFFSET ABOVE THE CONDUIT WHEN IN THE OPERATING POSITION, WHILE ALLOWING CLEAR SPACE ABOVE THE CONDUIT BORE WHEN IN THE OPEN POSITION, SAID GUIDE APPARATUS COMPRISING: SHEAVE ARM STRUCTURE INCLUDING AN UPPER SHEAVE AND A LOWER SHEAVE, MEANS SUPPORTING SAID LOWER SHEAVE IN POSITION FOR CENTERING A WIRE LINE AT THE ENTRANCE TO A CONDUIT AND SAID UPPER SHEAVE IN A POSITION ABOVE AND OFFSET FROM SAID LOWER SHEAVE WHEN SAID SHEAVE ARM STRUCTURE IS IN ITS OPERATING POSITION, AND MEANS ALLOWING PIVOTING OF SAID SHEAVE ARM STRUCTURE TO AN OPEN POSITION WHEREIN THERE IS AN UNOBSTRUCTED SPACE IN SAID SHEAVE ARM STRUCTURE ABOVE THE CONDUIT.
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) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |