Patent US3380268A successfully refreshed from Google Patents.
US3380268A
Expired / Lapsed
US
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Pin tumbler lock
Assignee: Individual
•
Filing: 1966-02-07
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Granted: 1968-04-30
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Expires: 1986-02-07
Abstract
No abstract record available.
Inventors
- 👤 Perrill Harlan Knox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:11
CPC Classifications
E; E05; E05B; E05B27/00; E05B27/02; E05B27/08; E05B27/083; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7588; Y10T70/7593; Y10T70/7667; Y10T70/7689; Y10T70/7701; Y10T70/778; Y10T70/7791; Y10T70/7842; Y10T70/7847; Y10T70/7853; Y10T70/7904; Y10T70/7915; Y10T70/7932; Y10T70/7938; Y10T70/80; Y10T70/8432; Y10T70/8595
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1387442A
Cited
US1445589A
Cited
US1619252A
Cited
US3006178A
Cited
US2993361A
Cited
US3204437A
Cited
US3237436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |