Self-aligning mechanism for swivel caster
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jul 15, 1980
Grant Date -
N/A
app pub date -
Feb 5, 1979
filing date -
Feb 5, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A self-aligning mechanism for swivel caster comprising a carriage supported for rotation about a predetermined axis, a wheel mounted on the carriage for rotation about an axis at right angles to said predetermined axis and a coiled spring yieldable means interconnecting the carriage and support yieldably holding the carriage in a predetermined position of rotation relative to the axis and structured to permit the carriage to rotate continuously in either direction relative to said axis.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- MARKET FORGE;MARKET FORGE CO., A CORP. OF DE;MARKET FORGE INC.
International Classification(s)

- 1979 Application Filing Year
- B60B Class
- 92 Applications Filed
- 1 Patents Issued To-Date
- 1.09 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Lombard, Paul W | Woburn, MA | 3 | 33 |
# of filed Patents : 3 Total Citations : 33 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 19 Citation Count
- B60B Class
- 0 % this patent is cited more than
- 45 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
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Apr 20, 2020 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Apr 20, 2020 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Mar 15, 2020 | FP | EXPIRED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Mar 15, 2020 |
Nov 04, 2019 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Dec 13, 2016 | CC | CERTIFICATE OF CORRECTION | |
Mar 15, 2016 | I | Issuance | |
Feb 24, 2016 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Oct 25, 2012 | P | Published | |
Jul 25, 2012 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:COLLINSON, ALBERT;WAGNER, PETER;SALLBERG, MATTI;AND OTHERS;SIGNING DATES FROM 20120702 TO 20120708;REEL/FRAME:028638/0434 Owner name: OPSONIC THERAPEUTICS INC., MASSACHUSETTS |
Oct 05, 2010 | F | Filing | |
Oct 05, 2009 | PD | Priority Date |

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