US3188698A Expired / Lapsed US ⏱️ 0.0 years remaining

Safety device for vertically movable doors

Assignee: The J G Wilson Corp

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Filing: 1960-12-01

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Granted: 1965-06-15

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Expires: 1980-12-01

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Abstract

No abstract record available.

Inventors

👤 Maurice B Zoll
👤 Ervin R Stallings

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-11-09 09:23

CPC Classifications

E; E05; E05D; E05D13/00; E05D13/003; E05D13/006; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/106; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49993; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582

Claims Analysis

Total Claims: 2

Claim 1

Independent Claim 56 words

A LEVER AND HUB ASSEMBLY COMPRISING A FLAT SHEET OF METAL ELONGATE IN SHAPE AND WITH ONE END PORTION HAVING AN APERTURE ON ITS LONGITUDINAL AXIS, THE OTHER END PORTION BEING WIDER THAN SAID AXIS-APERTURED END PORTION, AN APERTURE LATERALLY OFFSET FROM SAID AXIS AND FORMED IN SAID WIDER END PORTION, A HOLLOW CYLINDRICAL HUB FITTING

Claim 2

Dependent Claim 56 words

References Cited (Backward Citations)

US944534A Cited

US1787580A Cited

US2006228A Cited

FR733460A Cited

US2068543A Cited

US2095695A Cited

US2126519A Cited

US2185828A Cited

US2313312A Cited

US2691214A Cited

US2948558A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1968-06-14	1968-12-14	1969-06-15	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1972-06-14	1972-12-14	1973-06-15	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1976-06-14	1976-12-14	1977-06-15	$7700.00	Window Closed / Lapsed

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