Patent US3714739A successfully refreshed from Google Patents.
US3714739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door for box lockers and the like
Assignee: Individual
•
Filing: 1971-12-03
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Granted: 1973-02-06
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Expires: 1991-12-03
Abstract
Abstract AN INTEGRALLY MOLDED BOX LOCKER DOOR IS DESCRIBED, FOR USE EITHER IN SUBSTITUTION FOR STEEL DOORS IN ORIDINARY LOCK BOX CONSTRUCTION, OR FOR USE IN THE ORIGINAL CONSTRUCTION OF LOCK BOXES OF SYNTHETIC PLASTIC MATERIALS. A RECTANGULAR DOOR FACE PANEL FORMED WITH A PERIPHERAL SKIRT DEFINING A VERTICALLY-EXTENDING HINGE SIDE PORTION HAVING A WALL SECTION OF DIVERGENTLY INCREASING THICKNESS, WITH RESPECT TO WHICH HINGE LEAVES ARE ADAPTED TO SECURED FOR HINGING FOR THE DOOR TO A LOCK BOX OPENING, IS DESCRIBED, WHEREBY, DUE TO THE RESILIENCE OF THE SKIRT HINGE SIDE WITH RESPECT TO THE FACE PANEL, SPRING ACTION OPERATIVE TO PREVENT DOOR SLAMMING IS EFFECTED.
Inventors
- 👤 D Dolan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:14
CPC Classifications
E; E06; E06B; E06B5/00; E06B5/006
Claims Analysis
Total Claims: 0
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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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |