US3206959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interchangeable lock cores
Assignee: Individual
•
Filing: 1963-02-28
•
Granted: 1965-09-21
•
Expires: 1983-02-28
Abstract
No abstract record available.
Inventors
- 👤 Best Frank Ellison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:54
CPC Classifications
E; E05; E05B; E05B9/00; E05B9/08; E05B9/084; E05B9/086; E05B27/00; E05B27/0053; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7667; Y10T70/7672
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
IN A LOCK OF THE CLASS IN WHICH THE ASSEMBLY IS LOCKL CONTROLLED, A LOCK HOUSING HAVING THEREIN A RECEPTACLE OF SUBSTANTIALLY FIGURE-8 CROSS SECTIONAL SHAPE ADAPTED TO RECEIVE PRIMARY LOCK MECHANISM; A TUBULAR KEY PLUG HOUSING OF THIN SHEET METAL HAVING A PART OF GENERALLY CYLINDRICAL CROSS SECTIONAL SHAPE ADAPTED TO FIT TELESCOPICALLY WITHIN ONE PART OF THE FIGURE-8 SHAPED RECEPTACLE IN SAID LOCK HOUSING; AND A SHEET METAL TUMBLER PIN HOUSING SOLDERED TO SAID TUBULAR KEY PLUG HOUSING AND ADAPTED TO BE DIS-
Claim 2
Dependent Claim
85 words
IN A LOCK OF THE CLASS IN WHICH THE ASSEMBLY IS LOCKL CONTROLLED, A LOCK HOUSING HAVING THEREIN A RECEPTACLE OF SUBSTANTIALLY FIGURE-8 CROSS SECTIONAL SHAPE ADAPTED TO RECEIVE PRIMARY LOCK MECHANISM; A TUBULAR KEY PLUG HOUSING OF THIN SHEET METAL HAVING A PART OF GENERALLY CYLINDRICAL CROSS SECTIONAL SHAPE ADAPTED TO FIT TELESCOPICALLY WITHIN ONE PART OF THE FIGURE-8 SHAPED RECEPTACLE IN SAID LOCK HOUSING; AND A SHEET METAL TUMBLER PIN HOUSING SOLDERED TO SAID TUBULAR KEY PLUG HOUSING AND ADAPTED TO BE DIS-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |