US3255484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door hinge
Assignee: BILDWEL CO
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Filing: 1965-07-16
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Granted: 1966-06-14
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Expires: 1985-07-16
Abstract
No abstract record available.
Inventors
- 👤 Macdonald Robert Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:32
CPC Classifications
E; E05; E05D; E05D11/00; E05D11/10; E05D11/1014; E05D11/1028; E05D11/105; E05Y; E05Y2900/00; E05Y2900/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
141 words
A HINGE TO PIVOTALLY CONNECT A DOOR TO A FRAME SO THAT THE DOOR WILL CLOSE WITHOUT A LATCH, SAID HINGE COMPRISING A FIRST PORTION AND A SECOND PORTION, MEANS PIVOTALLY CONNECTING SAID FIRST PORTION AND SAID SECOND PORTION, A RESILIENT ROD HAVING AT LEAST ONE PORTION HELD BY SAID FIRST HINGE PORTION AND HAVING A SECOND PORTION URGED TOWARD THE SECOND HINGE PORTION, A CYLINDRICAL PRESSURE MEMBER MOUNTED ON THE SECOND PORTION OF SAID RESILIENT ROD, SAID PRESSURE MEMBER BEING URGED AGAINST A PORTION OF SAID SECOND HINGE PORTION WHEN THE DOOR IS MOVED TOWARD A CLOSED POSITION, TO URGED THE DOOR TO AND BEYOND THE CLOSED POSITION, SAID CYLINDRICAL PRESSURE MEMBER CONSTITUTING A CYLINDRICAL PLASTIC BODY HAVING A CENTRAL PASSAGE ROTATABLY RECEIVED ON SAID SECOND POERTION OF SAID RESILIENT ROD AND A METAL SLEEVE MOUNTED ON SAID PLASTIC BODY.
References Cited (Backward Citations)
GB270694A
Cited
US2811740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |