US3889423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible door frame
Assignee: Individual
•
Filing: 1973-12-17
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Granted: 1975-06-17
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Expires: 1993-12-17
Abstract
Abstract A metal door frame is disclosed in which the frame members are separable and reversible end for end to provide the same configuration in inverted position so that identical parts can be used both for right opening and left opening doors.
Inventors
- 👤 Claude Begin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:46
CPC Classifications
E; E06; E06B; E06B1/00; E06B1/04; E06B1/52; E06B1/526; E06B1/12; E06B1/18; E06B1/56; E06B1/60; E06B1/6069; E06B1/6076
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A door frame of metal section members of identical shape and dimensions comprising a lintel, a hinge post with provisions for connections of hinges, and a latch post with a latch element therein, said lintel and said posts having matching joint configurations at the ends thereof whereby either end of said posts may be joined to said lintel to define a frame having continuous flush opposed outer surfaces, said lintel and said posts being symmetrical in respect of said hinge connections, said latch and said joint configurations about a central plane perpendicular to the longitudinal extent of said lintel and said posts, said frame members comprising separate identical wings and a separate door stopper, said wings having grooves at their inner edges, said door stopper having tongues at its outer edges seated in said wing grooves, and resilient snaps holding said tongues in said grooves.
Claim 2
Dependent Claim
145 words
A door frame of metal section members of identical shape and dimensions comprising a lintel, a hinge post with provisions for connections of hinges, and a latch post with a latch element therein, said lintel and said posts having matching joint configurations at the ends thereof whereby either end of said posts may be joined to said lintel to define a frame having continuous flush opposed outer surfaces, said lintel and said posts being symmetrical in respect of said hinge connections, said latch and said joint configurations about a central plane perpendicular to the longitudinal extent of said lintel and said posts, said frame members comprising separate identical wings and a separate door stopper, said wings having grooves at their inner edges, said door stopper having tongues at its outer edges seated in said wing grooves, and resilient snaps holding said tongues in said grooves.
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) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |