GB9807642D0 - Telephone signal filtering apparatus - Google Patents
Telephone signal filtering apparatusInfo
- Publication number
- GB9807642D0 GB9807642D0 GBGB9807642.5A GB9807642A GB9807642D0 GB 9807642 D0 GB9807642 D0 GB 9807642D0 GB 9807642 A GB9807642 A GB 9807642A GB 9807642 D0 GB9807642 D0 GB 9807642D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- filtering apparatus
- signal filtering
- telephone signal
- telephone
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9807642.5A GB9807642D0 (en) | 1998-04-14 | 1998-04-14 | Telephone signal filtering apparatus |
GB9908549A GB2336505A (en) | 1998-04-14 | 1999-04-14 | Call screening using access code |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9807642.5A GB9807642D0 (en) | 1998-04-14 | 1998-04-14 | Telephone signal filtering apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB9807642D0 true GB9807642D0 (en) | 1998-06-10 |
Family
ID=10830118
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB9807642.5A Ceased GB9807642D0 (en) | 1998-04-14 | 1998-04-14 | Telephone signal filtering apparatus |
GB9908549A Withdrawn GB2336505A (en) | 1998-04-14 | 1999-04-14 | Call screening using access code |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9908549A Withdrawn GB2336505A (en) | 1998-04-14 | 1999-04-14 | Call screening using access code |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB9807642D0 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2443871B (en) * | 2006-07-25 | 2010-09-08 | Nigel Morris | Programmable telephone call filtering system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4845743A (en) * | 1986-09-12 | 1989-07-04 | Lutz Joseph M | System for selectively receiving telephone calls |
US4860347A (en) * | 1988-08-10 | 1989-08-22 | Costello Lloyd M | Phone screen security system |
US4937854A (en) * | 1989-03-03 | 1990-06-26 | Sarakas Stephen T | Call screening device |
CA2002842A1 (en) * | 1989-11-14 | 1991-05-14 | Victor M. Buraconak | Programmable external peripheral device using a 4 digit private identification number, p.i.n.#, to secure and protect and eliminate unsolicited and unwanted document reception, commonly known as "junk fax", applicable to a facsimile machine, commonly known as a fax machine |
ES2103638B1 (en) * | 1994-05-19 | 1998-05-01 | Aprovisionamiento De Zumos Nat | APPARATUS FOR TELEPHONE ACCESS CONTROL. |
US5631951A (en) * | 1996-03-19 | 1997-05-20 | Chen; Albert | Apparatus for preventing unwanted telephone calls |
-
1998
- 1998-04-14 GB GBGB9807642.5A patent/GB9807642D0/en not_active Ceased
-
1999
- 1999-04-14 GB GB9908549A patent/GB2336505A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB2336505A (en) | 1999-10-20 |
GB9908549D0 (en) | 1999-06-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AT | Applications terminated before publication under section 16(1) |