Slotted cable localizer antenna
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 5, 2002
Grant Date -
N/A
app pub date -
Jan 20, 1999
filing date -
Jan 20, 1999
priority date (Note) -
In Force
status (Latency Note)
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Abstract
This invention relates to improvements in slotted cable runway localizer antennas for the Instrument Landing System (ILS). The antenna radiates simultaneous sum and difference patterns carrying standard ILS reference (CSB) and deflection (SBO) components of the transmitted signal. The signal components from an ILS transmitter are supplied through an rf bridge (hybrid) to both ends of the slotted cable structure. Optional isolators inserted in the coaxial feed lines improve the impedance presented to the transmitter.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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WATTS ANTENNA COMPANY | 270 SUNSET PARK DRIVE HERNDON VA 20170 |
International Classification(s)

- 1999 Application Filing Year
- H01Q Class
- 767 Applications Filed
- 405 Patents Issued To-Date
- 52.81 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Watts, Jr Chester B | Annandale, VA | 5 | 4 |
# of filed Patents : 5 Total Citations : 4 |
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Patent Citation Ranking
- 0 Citation Count
- H01Q Class
- 0 % this patent is cited more than
- 23 Age
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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

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Nov 05, 2003 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Oct 08, 2003 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Oct 08, 2003 |
Oct 08, 2003 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Apr 23, 2003 | REMI | MAINTENANCE FEE REMINDER MAILED | |
May 31, 2001 | AS | ASSIGNMENT | free format text: RELEASE BY SECURED PARTY;ASSIGNOR:THE CHASE MANHATTAN BANK (FORMERLY CHASE BANK OF TEXAS, N.A.);REEL/FRAME:032576/0945 Owner name: BANCTEC, INC., TEXAS Effective Date: May 31, 2001 |
May 30, 2001 | AS | ASSIGNMENT | free format text: SECURITY INTEREST;ASSIGNOR:BANCTEC, INC.;REEL/FRAME:012002/0365 Owner name: HELLER FINANCIAL, INC., IOWA Effective Date: May 30, 2001 |
Jul 22, 1999 | AS | ASSIGNMENT | free format text: SECURITY INTEREST;ASSIGNOR:BANCTEC, INC.;REEL/FRAME:010144/0116 Owner name: CHASE BANK OF TEXAS, N.A., AS ADMINISTRATIVE AGENT Effective Date: Jul 22, 1999 |
Jan 11, 1999 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Dec 08, 1998 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Dec 18, 1995 | AS | ASSIGNMENT | free format text: ASSIGNMENT AND RELEASE OF SECURITY INTEREST;ASSIGNOR:FIRST NATIONAL BANK OF BOSTON, THE;REEL/FRAME:007795/0697 Owner name: RECOGNITION INTERNATIONAL INC., TEXAS Effective Date: Aug 01, 1995 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:RECOGNITION INTERNATIONAL INC., A CORP. OF DELAWARE;REEL/FRAME:007795/0692 Owner name: BANTEC, INC., A CORP, OF DELAWARE, TEXAS Effective Date: Dec 18, 1995 |
Oct 13, 1994 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Oct 31, 1993 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAT HLDR NO LONGER CLAIMS SMALL ENT STAT AS SMALL BUSINESS (ORIGINAL EVENT CODE: LSM2); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Mar 12, 1993 | AS | ASSIGNMENT | free format text: CHANGE OF NAME;ASSIGNOR:RECOGNITION EQUIPMENT INCORPORATED;REEL/FRAME:006462/0646 Owner name: RECOGNITION INTERNATIONAL INC., TEXAS Effective Date: Mar 12, 1993 |
Mar 26, 1992 | AS | ASSIGNMENT | free format text: SECURITY INTEREST;ASSIGNORS:RECOGNITION EQUIPMENT INC.;HYBRID SYSTEMS, INC.;RECOGNITION EQUIPMENT (JAPAN), INC.;REEL/FRAME:006344/0298 Owner name: FIRST NATIONAL BANK OF BOSTON, THE, AS AGENT, MASS Effective Date: Mar 26, 1992 |
Oct 08, 1991 | I | Issuance | |
Aug 26, 1991 | AS | ASSIGNMENT | free format text: MERGER;ASSIGNOR:HYBRID SYSTEMS INC., MD CORP.;REEL/FRAME:005841/0062 Owner name: HYBRID SYSTEMS, INC., DE CORP. Effective Date: Aug 06, 1991 free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HYBRID SYSTEMS INC. DE CORP;REEL/FRAME:005841/0068 Owner name: RECOGNITION EQUIPMENT INCORPORATED, DE CORP. Effective Date: Aug 26, 1991 |
Dec 18, 1989 | F | Filing | |
Dec 18, 1989 | PD | Priority Date | |
Dec 11, 1989 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:MURPHY, GARY J.;MURPHY, DERRICK L.;MURPHY, MICHAEL J.;AND OTHERS;REEL/FRAME:005198/0963 Owner name: HYBRID SYSTEMS, INC., MARYLAND Effective Date: Dec 11, 1989 |

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