US3158934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orthodontic appliances
Assignee: Individual
•
Filing: 1961-02-21
•
Granted: 1964-12-01
•
Expires: 1981-02-21
Abstract
No abstract record available.
Inventors
- 👤 Waldman David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:36
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/12; A61C7/20; A61C7/22; A61C7/28; A61C7/285; A61C7/14; A61C7/148
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
102 words
AN ORTHODONTIC APPLIANCE FOR USE WITH AN ARCH WIRE, THE APPLIANCE COMPRISING A METAL BLOCK HAVING A VERTICAL SLOT EXTENDING INTO IT ADAPTED TO RECEIVE AN ARCH WIRE, SAID SLOT SUBDIVIDING SAID BLOCK INTO A REAR PORTION, A FRONT PORTION, AND A BIGHT PORTION CONNECTING SAID REAR PORTION AND SAID FRONT PORTION, THE FRONT PORTION HAVING A TAPPED HOLE THERETHROUGH; A SET SCREW IN SAID HOLE FOR CLAMPING AN ARCH WIRE AGAINST SAID REAR PORTION; AND A LOOP SPRING SECURED TO SAID BLOCK, SAID SPRING EXTENDING OUTWARDLY FROM SAID BLOCK SUBSTANTIALLY IN A PLANE NORMAL TO THE AXIS OF SAID TAPPED HOLE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |