US2587664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Presence of crown detectors
Assignee: Individual
•
Filing: 1947-09-26
•
Granted: 1952-03-04
•
Expires: 1967-09-26
Abstract
No abstract record available.
Inventors
- 👤 Stout George Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:44
CPC Classifications
B; B67; B67B; B67B3/00; B67B3/26; B67B3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB284307A
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US2065118A
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US1957222A
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US1983388A
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US2125630A
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US2124410A
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US2237254A
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US2219885A
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US2228294A
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US2318923A
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US2341351A
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US2357512A
Cited
US2388812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-04 | 1955-09-03 | 1956-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-04 | 1959-09-03 | 1960-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-04 | 1963-09-03 | 1964-03-04 | $7700.00 | Window Closed / Lapsed |