US3626547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door hinge
Assignee: AUTO COMP DEVICES Inc
•
Filing: 1969-10-02
•
Granted: 1971-12-14
•
Expires: 1989-10-02
Abstract
Abstract AN AUTOMATIC SELF-CLOSING DOOR HINGE WHICH IS ACTUATED BY THE WEIGHT OF THE IT IS MOUNTED ON. THE HINGE UTILIZES AND INCLINED PLANE RIDING ON ROTATABLE MEMBERS.
Inventors
- 👤 Herbert S Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:54
CPC Classifications
E; E05; E05F; E05F1/00; E05F1/02; E05F1/04; E05F1/06; E05F1/061; E05D; E05D11/00; E05D11/04; E05Y; E05Y2900/00; E05Y2900/50; E05Y2900/53; E05Y2900/538
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |