Patent US3373529A successfully refreshed from Google Patents.
US3373529A
Expired / Lapsed
US
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Pivotal mounting for automatic door
Assignee: Roto Swing Inc
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Filing: 1966-10-31
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Granted: 1968-03-19
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Expires: 1986-10-31
Abstract
No abstract record available.
Inventors
- 👤 Gary G Ingham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:55
CPC Classifications
E; E05; E05D; E05D7/00; E05D7/08; E05D7/081; E05F; E05F3/00; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A PIVOTAL CONNECTION BETWEEN A DOOR OPERATOR AND A DOOR MOUNTED IN A DOOR OPENING AND WHICH COMPRISES SHAFT MEANS CARRIED BY THE DOOR OPERATOR, PIVOT SHAFT MEANS CARRIED BY THE DOOR MEANS FOR INDEPENDENTLY JOURNALING THE PIVOT SHAFT IN THE DOOR OPENING FOR PIVOTAL MOVEMENT OF THE DOOR THEREIN, AND MEANS PROVIDING REMOVABLE DRIVING ENGAGEMENT BETWEEN THE DOOR OPERATOR SHAFT MEANS AND THE PIVOT SHAFT MEANS WHEREBY THE DOOR OPERATOR MAY BE REMOVED AND INSTALLED INDEPENDENTLY FROM THE DOOR TO PERMIT UNINTERRUPTED USE OF THE DOOR.
Claim 2
Dependent Claim
87 words
A PIVOTAL CONNECTION BETWEEN A DOOR OPERATOR AND A DOOR MOUNTED IN A DOOR OPENING AND WHICH COMPRISES SHAFT MEANS CARRIED BY THE DOOR OPERATOR, PIVOT SHAFT MEANS CARRIED BY THE DOOR MEANS FOR INDEPENDENTLY JOURNALING THE PIVOT SHAFT IN THE DOOR OPENING FOR PIVOTAL MOVEMENT OF THE DOOR THEREIN, AND MEANS PROVIDING REMOVABLE DRIVING ENGAGEMENT BETWEEN THE DOOR OPERATOR SHAFT MEANS AND THE PIVOT SHAFT MEANS WHEREBY THE DOOR OPERATOR MAY BE REMOVED AND INSTALLED INDEPENDENTLY FROM THE DOOR TO PERMIT UNINTERRUPTED USE OF THE DOOR.
References Cited (Backward Citations)
US1896032A
Cited
US2082455A
Cited
US2640334A
Cited
US3210067A
Cited
US3237932A
Cited
US3266191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |