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US3348859A Expired / Lapsed US ⏱️ 0.0 years remaining

Towing device embodying two trailers

Assignee: Individual
•
Filing: 1965-05-24
•
Granted: 1967-10-24
•
Expires: 1985-05-24
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Abstract

No abstract record available.

Inventors

  • 👤 David H Melbye

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 22:41
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B60; B60D; B60D5/00; B60P; B60P3/00; B60P3/06; B60P3/10; B60P3/1033

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 229 words
A TOW DEVICE COMPRISING (A) TWO TRAILERS, (B) EACH OF SAID TRAILERS INCLUDING (1) ELONGATED FRAME HAVINGG (A'') FRONT AND REAR ENDS, AND (B'') TWO ELONGATED MEMBERS EXTENDING LONGITUDINALLY OF SAID FRAME, (2) A PAIR OF WHEELS SPACED FROM EACH OTHER TRANSVERSELY OF THE LENGTH OF SAID FRAME, AND (3) MEANS MOUNTED ON SAID ELONGATED MEMBERS AND OPERATIVELY CONNECTED TO SAID PAIR OF WHEELS FOR SUPPORTING SAID FRAME ON SAID WHEELS, (C) ONE OF SAID FRAMES HAVING A REAR END PORTION DISPOSED BETWEEN SAID ELONGATED MEMBERS THEREOF, (D) THE OTHER OF SAID FRAMES HAVING A FRONT END PORTION (1) DISPOSED BETWEEN SAID ELONGATED MEMBERS THEREOF, AND (2) RECEIVABLE IN SAID REAR END PORTION, (E) MEANS OPERATIVELY RELEASABLY CONNECTING SAID FRONT AND REAR END PORTIONS TOGETHER IN IMMOVABLE RELATION TO EACH OTHER, (F) SAID FIRST-MENTIONED MEANS ON SAID ONE FRAME BEING MOVABLE LONGITUDINALLY OF SAID ELONGATED MEMBERS ON WHICH THEY ARE MOUNTED FOR ADJUSTING THE POSITION OF SAID WHEELS OPERATIVELY CONNECTED THERETO FORWARDLY AND REARWARDLY RELATIVE TO SAID ONE FRAME, (G) SAID FRONT AND REAR END PORTIONS COMPRISING FORWARDLY BOWED ELONGATED CHANNEL-SHAPED MEMBERS HAVING UPPER AND LOWER FLANGES, (H) SAID FLANGES ON SAID FRONT END PORTION BEING DISPOSED BETWEEN SAID FLANGES ON SAID REAR END PORTION, AND (I) SAID MEANS RELEASABLY CONNECTING SAID FRONT AND REAR END PORTIONS TOGETHER COMPRISING ELONGATED MEMBERS MOUNTED IN SAID FLANGES OF SAID CHANNELSHAPED MEMBERS.
Claim 2
Dependent Claim 229 words
A TOW DEVICE COMPRISING (A) TWO TRAILERS, (B) EACH OF SAID TRAILERS INCLUDING (1) ELONGATED FRAME HAVINGG (A'') FRONT AND REAR ENDS, AND (B'') TWO ELONGATED MEMBERS EXTENDING LONGITUDINALLY OF SAID FRAME, (2) A PAIR OF WHEELS SPACED FROM EACH OTHER TRANSVERSELY OF THE LENGTH OF SAID FRAME, AND (3) MEANS MOUNTED ON SAID ELONGATED MEMBERS AND OPERATIVELY CONNECTED TO SAID PAIR OF WHEELS FOR SUPPORTING SAID FRAME ON SAID WHEELS, (C) ONE OF SAID FRAMES HAVING A REAR END PORTION DISPOSED BETWEEN SAID ELONGATED MEMBERS THEREOF, (D) THE OTHER OF SAID FRAMES HAVING A FRONT END PORTION (1) DISPOSED BETWEEN SAID ELONGATED MEMBERS THEREOF, AND (2) RECEIVABLE IN SAID REAR END PORTION, (E) MEANS OPERATIVELY RELEASABLY CONNECTING SAID FRONT AND REAR END PORTIONS TOGETHER IN IMMOVABLE RELATION TO EACH OTHER, (F) SAID FIRST-MENTIONED MEANS ON SAID ONE FRAME BEING MOVABLE LONGITUDINALLY OF SAID ELONGATED MEMBERS ON WHICH THEY ARE MOUNTED FOR ADJUSTING THE POSITION OF SAID WHEELS OPERATIVELY CONNECTED THERETO FORWARDLY AND REARWARDLY RELATIVE TO SAID ONE FRAME, (G) SAID FRONT AND REAR END PORTIONS COMPRISING FORWARDLY BOWED ELONGATED CHANNEL-SHAPED MEMBERS HAVING UPPER AND LOWER FLANGES, (H) SAID FLANGES ON SAID FRONT END PORTION BEING DISPOSED BETWEEN SAID FLANGES ON SAID REAR END PORTION, AND (I) SAID MEANS RELEASABLY CONNECTING SAID FRONT AND REAR END PORTIONS TOGETHER COMPRISING ELONGATED MEMBERS MOUNTED IN SAID FLANGES OF SAID CHANNELSHAPED MEMBERS.

References Cited (Backward Citations)

US1314498A Cited
US1621555A Cited
US2720413A Cited
US3004772A Cited
FR1252734A Cited
US3163306A Cited
US3102738A Cited
US3118552A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-10-23 1971-04-24 1971-10-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-10-23 1975-04-24 1975-10-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-10-23 1979-04-24 1979-10-24 $7700.00 Window Closed / Lapsed

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