US3094738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door closing device
Assignee: Individual
•
Filing: 1961-01-30
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Granted: 1963-06-25
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Expires: 1981-01-30
Abstract
No abstract record available.
Inventors
- 👤 Clyde H Chase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:47
CPC Classifications
E; E05; E05F; E05F3/00; E05F3/16; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A DOOR CLOSING DEVICE FOR A DOOR MEMBER HINGED ALONG ONE EDGE TO A DOOR FRAME MEMBER, A TRACK OF ELONGATED SHAPE SECURED TO ONE OF SAID MEMBERS AT RIGHT ANGLES TO THE HINGE AXIS, AN ELONGATED LEAF SPRING HAVING AN INNER PORTION SECURED TO THE OTHER OF SAID MEMBERS, AN INTERMEDIATE PORTION OF ARCUATE SHAPE CONVEX TOWARD SAID TRACK, A SECOND INTERMEDIATE PORTION OUTWARDLY OF SAID LAST-MENTIONED PORTION BENT SO AS TO BE CONVEX AWAY FROM SAID TRACK, A SLIDE MOUNTED IN SAID TRACK, AND AN OUTER SPRING PORTION EXTENDING TOWARD SAID TRACK AND PIVOTALLY SECURED TO SAID SLIDE.
Claim 2
Dependent Claim
101 words
IN A DOOR CLOSING DEVICE FOR A DOOR MEMBER HINGED ALONG ONE EDGE TO A DOOR FRAME MEMBER, A TRACK OF ELONGATED SHAPE SECURED TO ONE OF SAID MEMBERS AT RIGHT ANGLES TO THE HINGE AXIS, AN ELONGATED LEAF SPRING HAVING AN INNER PORTION SECURED TO THE OTHER OF SAID MEMBERS, AN INTERMEDIATE PORTION OF ARCUATE SHAPE CONVEX TOWARD SAID TRACK, A SECOND INTERMEDIATE PORTION OUTWARDLY OF SAID LAST-MENTIONED PORTION BENT SO AS TO BE CONVEX AWAY FROM SAID TRACK, A SLIDE MOUNTED IN SAID TRACK, AND AN OUTER SPRING PORTION EXTENDING TOWARD SAID TRACK AND PIVOTALLY SECURED TO SAID SLIDE.
References Cited (Backward Citations)
US91184A
Cited
US2664590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |