US2877638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pin tumbler lock
Assignee: Independent Lock Co
•
Filing: 1955-06-07
•
Granted: 1959-03-17
•
Expires: 1975-06-07
Abstract
No abstract record available.
Inventors
- 👤 Muttart Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:31
CPC Classifications
E; E05; E05B; E05B27/00; E05B27/0003; E05B27/0014; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5757; Y10T70/5832; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7638; Y10T70/7661; Y10T70/7667; Y10T70/7672
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US883857A
Cited
US949967A
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US1487900A
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US1598551A
Cited
US1707643A
Cited
US1997276A
Cited
US2135323A
Cited
GB658693A
Cited
US2726891A
Cited
US2719424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |