US3281122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traveling block dolly
Assignee: Lee C Moore Corp
•
Filing: 1965-07-15
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Granted: 1966-10-25
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Expires: 1985-07-15
Abstract
No abstract record available.
Inventors
- 👤 Jenkins Cecil
- 👤 Joseph R Woolslayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:10
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/02; B; B66; B66D; B66D3/00; B66D3/04; E21B15/00; E21B15/02; B66D2700/00; B66D2700/02; B66D2700/026; B66D2700/028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A TRAVELING BLOCK DOLLY COMPRISING A VERTICAL FRAME HAVING INNER AND OUTER SIDES, MEANS CONNECTED TO THE FRAME ADAPTED TO RUN ON A VERTICAL TRACK IN A DRILLING MAST, ATTACHMENT MEANS AT THE INNER SIDE OF THE FRAME FOR CONNECTING TO ONE FACE OF A TRAVELING BLOCK, SUPPORTIN MEANS CONNECTED TO SAID ATTACHMENT MEANS AND MOVABLY CONNECTED TO SAID FRAME TO ALLOW SAID ATTACHMENT MEANS TO MOVE INWARDLY AWAY FROM THE FRAME, AND YIELDABLE RESTRAINING MEANS CONNECTED WITH THE FRAME FOR CONTROLLING MOVEMENT OF SAID ATTACHMENT MEANS AWAY FROM THE FRAME.
Claim 2
Dependent Claim
91 words
A TRAVELING BLOCK DOLLY COMPRISING A VERTICAL FRAME HAVING INNER AND OUTER SIDES, MEANS CONNECTED TO THE FRAME ADAPTED TO RUN ON A VERTICAL TRACK IN A DRILLING MAST, ATTACHMENT MEANS AT THE INNER SIDE OF THE FRAME FOR CONNECTING TO ONE FACE OF A TRAVELING BLOCK, SUPPORTIN MEANS CONNECTED TO SAID ATTACHMENT MEANS AND MOVABLY CONNECTED TO SAID FRAME TO ALLOW SAID ATTACHMENT MEANS TO MOVE INWARDLY AWAY FROM THE FRAME, AND YIELDABLE RESTRAINING MEANS CONNECTED WITH THE FRAME FOR CONTROLLING MOVEMENT OF SAID ATTACHMENT MEANS AWAY FROM THE FRAME.
References Cited (Backward Citations)
US2999549A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |