US3087050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument for inspecting locks
Assignee: Engelhard Hanovia Inc
•
Filing: 1960-06-13
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Granted: 1963-04-23
•
Expires: 1980-06-13
Abstract
No abstract record available.
Inventors
- 👤 Harry S Rubens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:32
CPC Classifications
E; E05; E05B; E05B19/00; E05B19/20; A; A61; A61B; A61B1/00; A61B1/06; A61B1/0661; A61B1/0669; A61B1/227; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/778; Y10T70/7791; Y10T70/7797
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1345406A
Cited
GB191400381A
Cited
US1775140A
Cited
US1977362A
Cited
US1990972A
Cited
US2023945A
Cited
US2343041A
Cited
US2678645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |