Patent US3206958A successfully refreshed from Google Patents.
US3206958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interchangeable lock cores
Assignee: Individual
•
Filing: 1963-02-15
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Granted: 1965-09-21
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Expires: 1983-02-15
Abstract
No abstract record available.
Inventors
- 👤 Best Frank Ellison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:27
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; Y10T70/7638; Y10T70/765; Y10T70/7667; Y10T70/7672
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A LOCK OF THE CLASS IN WHICH THE ASSEMBLY IS LOCK 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 AND 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 TUMBLER PIN HOUSING OF THIN FLAT SHEET METAL INTERLOCKE IN ENGAGEMENT WITH SAID TUBULAR KEY PLUG HOUSIGN AND ADAPTED TO BE DISPOSED WITHIN THE OTHER PART OF THE FIGURE8 SHAPED RECEPTACLE IN SAID LOCK HOUSING.
Claim 2
Dependent Claim
101 words
IN A LOCK OF THE CLASS IN WHICH THE ASSEMBLY IS LOCK 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 AND 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 TUMBLER PIN HOUSING OF THIN FLAT SHEET METAL INTERLOCKE IN ENGAGEMENT WITH SAID TUBULAR KEY PLUG HOUSIGN AND ADAPTED TO BE DISPOSED WITHIN THE OTHER PART OF THE FIGURE8 SHAPED RECEPTACLE IN SAID LOCK HOUSING.
References Cited (Backward Citations)
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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 |