Patent US3142872A successfully refreshed from Google Patents.
US3142872A
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Door control device
Assignee: Republic Industries Inc
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Filing: 1961-09-11
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Granted: 1964-08-04
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Expires: 1981-09-11
Abstract
Abstract 939,131. Door control devices. REPUBLIC INDUSTRIES Inc. Sept. 7, 1962 [Sept. 11, 1961], No. 34318/62. Class 65 (1). A floor-mounted door check for a swing door 14 comprises a housing 18 with a spindle 16 supporting and controlling the door, an extruded aluminium threshold strip 20 and 22 with an aperture for the spindle, the housing being contained in and having a clearance from a recess 26 in the concrete floor 10. The housing 18 is narrower than the strip section 20 to which it is screwed, and the weight of the door and door check are therefore carried directly through the strip, to the floor to which it is bolted.
Inventors
- 👤 Allen T Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:07
CPC Classifications
E; E05; E05F; E05F3/00; E05F3/22; E05F3/225; E05Y; E05Y2600/00; E05Y2600/40; E05Y2600/41; E05Y2600/452; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1826613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |