Patent US2852197A successfully refreshed from Google Patents.
US2852197A
Expired / Lapsed
US
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Controlling and exhibiting apparatus
Assignee: Bristol Co
•
Filing: 1953-12-31
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Granted: 1958-09-16
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Expires: 1973-12-31
Abstract
No abstract record available.
Inventors
- 👤 William C Virbila
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:54
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/42; G01D9/00; G01D9/02; G01D9/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2129723A
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US2202485A
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US2302707A
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US2333834A
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US2369887A
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US2438371A
Cited
US2528735A
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US2486764A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |