Did You Know...
...In 1790, the cost to obtain a patent was between $4 and $5.
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 |
| 6202729 | Pocket gate A wall mount, pet/child excluder installed within the wall (pocket) of a room, or the exterior of a wall, with an extendible gate which travels from a stored position out across a doorway. A standard, vertical wall stud is modified to accept the rear of t... | 03/20/2001 |
| 5692551 | Window security guard This invention is a window security guard that can be mounted by a do it yourself individual in a window. The security guard is designed so that it can be decorated to meet the decor of the room where it is placed. The security guard has a collapsible gri... | 12/02/1997 |
| 5535803 | Expandable security grille or barrier A security grille is provided of the type in which a series of tubular uprights are interconnected by transverse link members so as to provide an expandable and contractible grille. The tubular uprights have slots for guiding and locating transverse studs... | 07/16/1996 |
| 4986592 | Anti-glare device An anti-glare device for motor vehicles including two profiled strips extending parallel and each having a respective pin receiving generally dovetail shaped groove extending along its length. A plurality of slats extend between the profiled strips. Each ... | 01/22/1991 |
| 4816310 | Collapsible structure A collapsible structure is provided comprising pairs of parallel posts interconnected by pairs of expansion link-like connecting rods. Connecting rods of each pair have their centers pivotably connected, wherein their outer ends are pivotably connected wi... | 03/28/1989 |
| 4723587 | Expansible gate protector An expansible baby gate having a main lazy-tong barrier formed of intersecting and pivotally connected first and second main slats which form V-shaped openings between the slats along the top edge portion of the barrier. A supplementary upper barrier, inc... | 02/09/1988 |
| 4669521 | Children's expandable gate with safety features to prevent head and neck entrapment A children'expandable, accordian-type gate is disclosed which includes safety features for closing off the open, upper V-shaped openings of the latticework of the gate, which latticework is comprised of a first series of slats parallel to each, and a seco... | 06/02/1987 |
| 4006768 | Security screen A security screen is provided, adapted to be applied inside windows, doors or the like, to be kept hidden from view when not in use, and which is of the type that has vertical bars that are connected by angular links, and with the screens generally being ... | 02/08/1977 |
