Family

Loading Family data...

• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
TETRA TECH INC	3475 E FOOTHILL BLVD PASADENA CA 91107-6024

International Classification(s)

• B61K:OTHER AUXILIARY EQUIPMENT FOR RAILWAYS
• B61L:GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RA....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Mesher, Darel	Spruce Grove, CA	31	592

Cited Art Landscape

Load Citation

• No Cited Art to Display

Loading Cited Art Landscape...

Patent Citation Ranking

Forward Cite Landscape

Load Citation

• No Forward Cites to Display

Loading Forward Cite Landscape...

Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Sep 19, 2027
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Sep 19, 2031

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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

US Patent Application No: 2020/0086,903

APPARATUS AND METHOD FOR CALCULATING PLATE CUT AND RAIL SEAT ABRASION BASED ON MEASUREMENTS ONLY OF RAIL HEAD ELEVATION AND CROSSTIE SURFACE ELEVATION

---

 

Legal Events