US3122387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locks
Assignee: Dennison Manufacturing Co
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Filing: 1962-10-25
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Granted: 1964-02-25
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Expires: 1982-10-25
Abstract
No abstract record available.
Inventors
- 👤 John R Wakelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:59
CPC Classifications
E; E05; E05B; E05B17/00; E05B17/0012; E05B17/06; Y; Y10; Y10S; Y10S292/00; Y10S292/38; Y10T; Y10T292/00; Y10T292/03; Y10T292/08; Y10T292/1043; Y10T292/1075; Y10T292/1083; Y10T70/00; Y10T70/80; Y10T70/8973
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
FOR INTERLOCKING THE UPPER AND LOWER SASHES OF A WINDOW OR OTHER RELATIVELY MOVABLE PARTS HAVING A CRACK THEREBETWEEN, A LOCK COMPRISING INTERLOCKING MALE AND FEMALE MEMBERS FOR ATTACHMENT TO THE TWO PARTS RESPECTIVELY, CHARACTERIZED BY A CONNECTOR BRIDGING SAID CRACK JOINING THE TWO MEMBERS TOGETHER WHILE BEING MOUNTED, THEREBY TO SPACE THEM APART A PREDETERMINED DISTANCE, THE CONNECTOR BEING FRANGIBLE SO THAT IT CAN BE BROKEN AFTER THE MEMBERS ARE MOUNTED.
Claim 2
Dependent Claim
72 words
FOR INTERLOCKING THE UPPER AND LOWER SASHES OF A WINDOW OR OTHER RELATIVELY MOVABLE PARTS HAVING A CRACK THEREBETWEEN, A LOCK COMPRISING INTERLOCKING MALE AND FEMALE MEMBERS FOR ATTACHMENT TO THE TWO PARTS RESPECTIVELY, CHARACTERIZED BY A CONNECTOR BRIDGING SAID CRACK JOINING THE TWO MEMBERS TOGETHER WHILE BEING MOUNTED, THEREBY TO SPACE THEM APART A PREDETERMINED DISTANCE, THE CONNECTOR BEING FRANGIBLE SO THAT IT CAN BE BROKEN AFTER THE MEMBERS ARE MOUNTED.
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) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |