US4334338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separable hinge
Assignee: Individual
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Filing: 1980-12-29
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Granted: 1982-06-15
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Expires: 2000-12-29
Abstract
Abstract A hinge assembly comprising two interfitting portions wherein a cylindrical shaft connects to a hollow cylinder to construct an operative hinge assembly.
Inventors
- 👤 John L. Conn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:29
CPC Classifications
E; E05; E05D; E05D7/00; E05D7/10; E05D7/1044; E05D7/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A hinge assembly comprising two interfitting portions wherein the first portion includes a first base plate having an arm extending from one side that integrally connects to a first end of a cylinderical shaft, said shaft extending parallel to said base plate's one side and having a second free end with external keys thereon, said shaft and base plate being coplaner; and the second portion including a hollow cylinder affixed to a second base plate with the longitudinal axis of said cylinder being substantially coplaner thereto and wherein said cylinder includes internal keyway grooves adapted to slidingly receive the shaft's external keys, with the length of said cylinder being less than the length of said shaft and said shaft being sufficiently spaced from said base plate edge to allow said second portion to rotate almost 360 degrees around said shaft.
Claim 2
Dependent Claim
140 words
A hinge assembly comprising two interfitting portions wherein the first portion includes a first base plate having an arm extending from one side that integrally connects to a first end of a cylinderical shaft, said shaft extending parallel to said base plate's one side and having a second free end with external keys thereon, said shaft and base plate being coplaner; and the second portion including a hollow cylinder affixed to a second base plate with the longitudinal axis of said cylinder being substantially coplaner thereto and wherein said cylinder includes internal keyway grooves adapted to slidingly receive the shaft's external keys, with the length of said cylinder being less than the length of said shaft and said shaft being sufficiently spaced from said base plate edge to allow said second portion to rotate almost 360 degrees around said shaft.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-14 | 1985-12-14 | 1986-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-14 | 1989-12-14 | 1990-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-14 | 1993-12-14 | 1994-06-15 | $7700.00 | Window Closed / Lapsed |