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US3303581A Expired / Lapsed US ⏱️ 0.0 years remaining

Scale model door frames

Assignee: Steelcraft Manufacturing Co
•
Filing: 1965-04-06
•
Granted: 1967-02-14
•
Expires: 1985-04-06
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Abstract

No abstract record available.

Inventors

  • 👤 Robert E Levinson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 02:26
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/96; E06B3/964; E06B3/968; E06B3/9684

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 161 words
A MINATURE SECTIONAL DOOR FRAME FOR DEMONSTRATING A PLURALITY OF DOOR FRAME ASSEMBLIES UTILIZING INTERCHANGEABLE FRAMING SECTIONS, AND SAID DOOR FRAME COMPRISING: A BASE ADAPTED TO SUPPORT THE ASSEMBLED MINATURE FRAME ASSEMBLY; A PAIR OF JAMBS IN THE FORM OF GENERALLY HOLLOW SECTIONS ADAPTED TO BE MOUNTED VERTICALLY UPON SAID BASE; RESPECTIVE SPLICE CLIPS INTERFITTING THE LOWER END PORTIONS OF SAID JAMB SECTIONS; SAID SPLICE CLIPS INCLUDING COUPLING HEADS PROJECTING DOWNWARDLY BELOW THE LOWER ENDS OF SAID JAMBS, WITH THE SAID LOWER ENDS OF THE JAMB SECTIONS RESTING UPON THE BASE; SAID BASE INCLUDING APERTURES ADAPTED TO RECEIVE SAID COUPLING HEADS, THEREBY TO CONNECT THE LOWER ENDS OF THE JAMB SECTIONS IN ABUTTING ENGAGEMENT WITH SAID BASE; A HEAD RAIL IN THE FORM OF A GENERALLY HOLLOW SECTION EXTENDING ACROSS THE UPPER ENDS OF THE VERTICAL JAMB SECTIONS; AND CONNECTOR ELEMENTS INTERCONNECTING THE OPPOSITE END PORTIONS OF THE HEAD RAIL SECTION TO THE UPPER END PORTIONS OF THE VERTICAL JAMB SECTIONS.
Claim 2
Dependent Claim 161 words
A MINATURE SECTIONAL DOOR FRAME FOR DEMONSTRATING A PLURALITY OF DOOR FRAME ASSEMBLIES UTILIZING INTERCHANGEABLE FRAMING SECTIONS, AND SAID DOOR FRAME COMPRISING: A BASE ADAPTED TO SUPPORT THE ASSEMBLED MINATURE FRAME ASSEMBLY; A PAIR OF JAMBS IN THE FORM OF GENERALLY HOLLOW SECTIONS ADAPTED TO BE MOUNTED VERTICALLY UPON SAID BASE; RESPECTIVE SPLICE CLIPS INTERFITTING THE LOWER END PORTIONS OF SAID JAMB SECTIONS; SAID SPLICE CLIPS INCLUDING COUPLING HEADS PROJECTING DOWNWARDLY BELOW THE LOWER ENDS OF SAID JAMBS, WITH THE SAID LOWER ENDS OF THE JAMB SECTIONS RESTING UPON THE BASE; SAID BASE INCLUDING APERTURES ADAPTED TO RECEIVE SAID COUPLING HEADS, THEREBY TO CONNECT THE LOWER ENDS OF THE JAMB SECTIONS IN ABUTTING ENGAGEMENT WITH SAID BASE; A HEAD RAIL IN THE FORM OF A GENERALLY HOLLOW SECTION EXTENDING ACROSS THE UPPER ENDS OF THE VERTICAL JAMB SECTIONS; AND CONNECTOR ELEMENTS INTERCONNECTING THE OPPOSITE END PORTIONS OF THE HEAD RAIL SECTION TO THE UPPER END PORTIONS OF THE VERTICAL JAMB SECTIONS.

References Cited (Backward Citations)

US1292508A Cited
GB827583A Cited
US2885822A Cited
US3176428A Cited
US3168793A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-02-13 1970-08-15 1971-02-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-02-13 1974-08-15 1975-02-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-02-13 1978-08-15 1979-02-14 $7700.00 Window Closed / Lapsed

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