Patent US3237436A successfully refreshed from Google Patents.
US3237436A
Expired / Lapsed
US
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Tumbler lock structure
Assignee: Individual
•
Filing: 1964-01-06
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Granted: 1966-03-01
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Expires: 1984-01-06
Abstract
No abstract record available.
Inventors
- 👤 Delbert A Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:29
CPC Classifications
E; E05; E05B; E05B27/00; E05B27/02; E05B27/08; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5009; Y10T70/5031; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7588; Y10T70/7593; Y10T70/778; Y10T70/7791; Y10T70/7802; Y10T70/7842; Y10T70/7847; Y10T70/7853; Y10T70/7881
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A KEY FOR A LOCK OF THE TYPE HAVING CODED ELEMENTS WHICH MUST BE MATCHED BY CODED ELEMENTS OF SAID KEY TO ENABLE SAID KEY TO BE ROTATED WITHIN SAID LOCK, SAID KEY COMPRISING A BODY HAVING A CYLINDRICAL WALL PORTION FOR INSERTION INTO SUCH LOCK, A PLURALITY OF BITS WITHIN SAID CYLINDRICAL WALL PORTION AND DISPOSED IN SPACED RELATION IN A DIRECTION PARALAND BEING VARIOUSLY DIMENSIONED IN A DIRECTION PARALLEL TO SAID AXIS IN A MANNER TO MATCH THE CODE OF THE CODED ELEMENTS OF SAID LOCK WHEREBY TO FACILITATE ROTATION OF SAID KEY RELATIVE TO SAID LOCK AFTER SAID KEY HAS BEEN INSERTED THEREIN,
Claim 2
Dependent Claim
106 words
A KEY FOR A LOCK OF THE TYPE HAVING CODED ELEMENTS WHICH MUST BE MATCHED BY CODED ELEMENTS OF SAID KEY TO ENABLE SAID KEY TO BE ROTATED WITHIN SAID LOCK, SAID KEY COMPRISING A BODY HAVING A CYLINDRICAL WALL PORTION FOR INSERTION INTO SUCH LOCK, A PLURALITY OF BITS WITHIN SAID CYLINDRICAL WALL PORTION AND DISPOSED IN SPACED RELATION IN A DIRECTION PARALAND BEING VARIOUSLY DIMENSIONED IN A DIRECTION PARALLEL TO SAID AXIS IN A MANNER TO MATCH THE CODE OF THE CODED ELEMENTS OF SAID LOCK WHEREBY TO FACILITATE ROTATION OF SAID KEY RELATIVE TO SAID LOCK AFTER SAID KEY HAS BEEN INSERTED THEREIN,
References Cited (Backward Citations)
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Cited
US1092223A
Cited
US1375521A
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FR534215A
Cited
US1664042A
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US1721747A
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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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |