Y10T70/5611- For control and machine elementsįor use in preventing the theft of a trailer vehicle attached to a tractor vehicle, the reversible keeper member is oriented such that the extended portion projects forwardly and downwardly so as to be below and adjacent the hitching apparatus of the trailer vehicle.
Y10T- TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION.Y10- TECHNICAL SUBJECTS COVERED BY FORMER USPC.Y- GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS AND DIGESTS.B60D1/60- Covers, caps or guards, e.g.B60D1/00- Traction couplings Hitches Draw-gear Towing devices.230000002441 reversible Effects 0.000 claims abstract description 8.241001236653 Lavinia exilicauda Species 0.000 title claims abstract description 38.Anticipated expiration legal-status Critical Status Expired - Fee Related legal-status Critical Current Links ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CALLISON & ASSOCIATES LIMITED PARTNERSHIP VIII Assigned to FLIP-LOCK II, INC. OF IOWA ASSIGNMENT OF ASSIGNORS INTEREST. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Callison Douglas A filed Critical Callison Douglas A Priority to US07/040,281 priority Critical patent/US4774823A/en Application granted granted Critical Publication of US4774823A publication Critical patent/US4774823A/en Assigned to CALLISON & ASSOCIATES LIMITED PARTNERSHIP VIII AN IOWA LIMITED PARTNERSHIP reassignment CALLISON & ASSOCIATES LIMITED PARTNERSHIP VIII AN IOWA LIMITED PARTNERSHIP ASSIGNMENT OF ASSIGNORS INTEREST. Original Assignee Callison Douglas A Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Callison Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US07/040,281 Inventor Douglas A.
#Trailer hitch lock pdf
Google Patents US4774823A - Trailer hitch lockĭownload PDF Info Publication number US4774823A US4774823A US07/040,281 US4028187A US4774823A US 4774823 A US4774823 A US 4774823A US 4028187 A US4028187 A US 4028187A US 4774823 A US4774823 A US 4774823A Authority US United States Prior art keywords vehicle trailer ear base portion trailer vehicle Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
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