Patent US3234768A successfully refreshed from Google Patents.
US3234768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Key actuated mechanism with temporary ball tumbler
Assignee: Individual
•
Filing: 1963-04-15
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Granted: 1966-02-15
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Expires: 1983-04-15
Abstract
No abstract record available.
Inventors
- 👤 Fred J Russell
- 👤 Fred L Jennie
- 👤 Richard L Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:22
CPC Classifications
E; E05; E05B; E05B27/00; E05B27/005; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7446; Y10T70/7452; Y10T70/7729; Y10T70/7734
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
26 words
A LOCK TUMBLER CYLINDER ASSEMBLY INCLUDING A CYLINDER HOUSING, A KEY PLUG ROTATABLE IN THE CYLINDER HOUSING, SAID HOUSING AND SAID KEY PLUG HAVING SETS OF
References Cited (Backward Citations)
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US2818723A
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US3078705A
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US3070987A
Cited
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US3183692A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |