Jamming signal cancellation system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 8, 1994
Issued Date -
N/A
app pub date -
Sep 24, 1974
filing date -
Feb 28, 1974
priority date (Note) -
In Force
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
Improved radar system performance in a jamming environment is achieved by detecting the AM difference frequency produced by the beating of the desired radar signal with the jamming signal and applying same to one input of a balanced modulator while simultaneously applying the received signal (containing both the desired radar signal and the jamming signal) to the other input of the balanced modulator whereby the output from the balanced modulator contains the desired signal but not the jamming signal.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- LOCKHEED SANDERS, INC.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Richmond, Martin R | Lexington, MA | 8 | 130 |
# of filed Patents : 8 Total Citations : 130 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 39 Citation Count
- G01S Class
- 93.51 % this patent is cited more than
- 31 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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 |
---|---|---|---|
Jun 29, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Feb 01, 2019 | AS | ASSIGNMENT | free format text: CHANGE OF NAME;ASSIGNOR:PHILIPS LIGHTING HOLDING B.V.;REEL/FRAME:050837/0576 Owner name: SIGNIFY HOLDING B.V., NETHERLANDS Effective Date: Feb 01, 2019 |
Jan 16, 2018 | I | Issuance | |
Dec 27, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Nov 24, 2016 | P | Published | |
Jul 26, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NOLAN, JULIAN CHARLES;LAWRENSON, MATTHEW JOHN;VAN EEUWIJK, ALEXANDER HENRICUS WALTHERUS;AND OTHERS;SIGNING DATES FROM 20150116 TO 20160518;REEL/FRAME:039264/0632 Owner name: KONINKLIJKE PHILIPS N.V., NETHERLANDS |
Feb 01, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KONINKLIJKE PHILIPS N.V.;REEL/FRAME:050429/0060 Owner name: PHILIPS LIGHTING HOLDING B.V., NETHERLANDS Effective Date: Feb 01, 2016 |
Jan 16, 2015 | F | Filing | |
Jan 30, 2014 | PD | Priority Date |

Matter Detail

Renewals Detail
