US3303581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scale model door frames
Assignee: Steelcraft Manufacturing Co
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Filing: 1965-04-06
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Granted: 1967-02-14
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Expires: 1985-04-06
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)
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 |