Patent US3286476A successfully refreshed from Google Patents.
US3286476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable laying plow
Assignee: AT&T Inc
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Filing: 1963-09-30
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Granted: 1966-11-22
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Expires: 1983-09-30
Abstract
No abstract record available.
Inventors
- 👤 John C Maclay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:53
CPC Classifications
H; H02; H02G; H02G1/00; H02G1/06; E; E02; E02F; E02F5/00; E02F5/02; E02F5/10; E02F5/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A CABLE PLOW COMPRISING A FRAME MOUNTED UPON TWO WHEELS AND ADAPTED TO BE TRAILED BEHIND MOVING MEANS, A SHARE PIN JOINTED TO SAID FRAME BY ARM MEMBERS, HOLDING MEANS INCLUDING SAID MEMBERS FOR MAINTAINING SAID SHARE IN THE SAME ATTITUDE WITH RESPECT TO THE GROUND AN EXTENDABLE TONGUE RIGIDLY MOUNTED ON THE FRONT OF SAID FRAME SAID TONGUE INCLUDING HITCHING MEANS ON ITS FOREMOST END, SAID TONGUE BEING SUFFICIENTLY EXTENDABLE TO CAUSE THE LINE OF ACTION OF THE RESULTANT FORCE OF THE GROUND AGAINST SAID SHARE TO CREATE A MOMENT ABOUT SAID HITCHING MEANS THAT ASSISTS IN MAINTAINING THE SHARE IN THE GROUND, MAIN REEL SUPPORT ARMS RAISABLY AND LOWERABLY ATTACHED TO THE REAR OF SAID FRAME, SAID MAIN ARMS INCLUDING MAIN CRADLES ON THEIR OUTERMOST ENDS, SAID MAIN CRADLES BEING ADAPTED TO RECEIVE THE ENDS OF A REEL AXLE, AUXILIARY REEL SUPPORT ARMS ATTACHED TO SAID MAIN SUP-
Claim 2
Dependent Claim
150 words
A CABLE PLOW COMPRISING A FRAME MOUNTED UPON TWO WHEELS AND ADAPTED TO BE TRAILED BEHIND MOVING MEANS, A SHARE PIN JOINTED TO SAID FRAME BY ARM MEMBERS, HOLDING MEANS INCLUDING SAID MEMBERS FOR MAINTAINING SAID SHARE IN THE SAME ATTITUDE WITH RESPECT TO THE GROUND AN EXTENDABLE TONGUE RIGIDLY MOUNTED ON THE FRONT OF SAID FRAME SAID TONGUE INCLUDING HITCHING MEANS ON ITS FOREMOST END, SAID TONGUE BEING SUFFICIENTLY EXTENDABLE TO CAUSE THE LINE OF ACTION OF THE RESULTANT FORCE OF THE GROUND AGAINST SAID SHARE TO CREATE A MOMENT ABOUT SAID HITCHING MEANS THAT ASSISTS IN MAINTAINING THE SHARE IN THE GROUND, MAIN REEL SUPPORT ARMS RAISABLY AND LOWERABLY ATTACHED TO THE REAR OF SAID FRAME, SAID MAIN ARMS INCLUDING MAIN CRADLES ON THEIR OUTERMOST ENDS, SAID MAIN CRADLES BEING ADAPTED TO RECEIVE THE ENDS OF A REEL AXLE, AUXILIARY REEL SUPPORT ARMS ATTACHED TO SAID MAIN SUP-
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |