Bizarre Patents
Self Containing Enclosure for Protection from Killer Bees
A self contained protective enclosure with an opening for entry and egress and a screen for ventilation and viewing.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6798879 | Remote telephone call notification system A remote telephone call notification system for notifying a user at a remote location that a communication device is receiving a call. The remote telephone call notification system includes a base unit and a remote unit, with the base unit being adapted for interfac... | 09/28/2004 |
| 5996106 | Multi bank test mode for memory devices A multiple bank memory device is described which can be tested by accessing the multiple memory banks simultaneously. The memory includes a test mode trigger which initiates a test which writes and reads from memory cells located in different memory banks... | 11/30/1999 |
| 5995604 | Method of preventing fraudulent toll calls by key system users The invention provides a method and apparatus for the prevention of fraudulent toll calls by a user connected to a key telephone system. On recognition of a user request for use of a telephone line to make a call to a destination outside the key system, t... | 11/30/1999 |
| 5469493 | Telephone call saving system and method for an integrated service digital network A call saving system for an ISDN telephone switching system includes a subscriber switching unit and terminal units connected to the subscriber switching unit via subscriber lines. A control device controls an overall call saving process executed between ... | 11/21/1995 |
| 4451702 | Arrangement of interactive telephone switching processors for performing timing analyses of port events A common control for a community office (C.O.) switching system includes two interactive processors. A call control processor comprises the uppermost element in the control hierarchy and is a stored program processor that controls call progression, marks ... | 05/29/1984 |
| 4335279 | Mechanical telephone conversation time limiting device To prevent unauthorized or prolonged telephone conversations, a limiting device is attachable to an ordinary telephone set by means of a padlock means with removable key. The device comprises a timer which can be set only when one of the shut-off pushbutt... | 06/15/1982 |
| 4048451 | Arrangement for monitoring live call disposition signals The reliable detection of call disposition signals to identify the ultimate dispositions of calls switched over a cross-office connection is achieved by attaching monitoring equipment to the sender that has been seized by an incoming trunk circuit of a te... | 09/13/1977 |
| 3965305 | Arrangement for increasing the call handling capabilities of a crosspoint tandem system In a communication switching system including a control unit for establishing connections through a switching matrix, the connections being established during a cycle of the control unit and the cycle being divided into a number of sequence states or sub-... | 06/22/1976 |
