Patent US2450835A successfully refreshed from Google Patents.
US2450835A
Expired / Lapsed
US
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Indicating apparatus
Assignee: Niles Bement Pond Co
•
Filing: 1946-03-16
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Granted: 1948-10-05
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Expires: 1966-03-16
Abstract
No abstract record available.
Inventors
- 👤 Lee Leighton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:22
CPC Classifications
F; F02; F02B; F02B77/00; F02B77/08; F02B77/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1377963A
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US1293155A
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US2175681A
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US2268549A
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US2251751A
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US2355090A
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US2304822A
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US2287794A
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US2422240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-05 | 1952-04-05 | 1952-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-05 | 1956-04-05 | 1956-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-05 | 1960-04-05 | 1960-10-05 | $7700.00 | Window Closed / Lapsed |