Patent US2276306A successfully refreshed from Google Patents.
US2276306A
Expired / Lapsed
US
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System for making weathering corrections
Assignee: Consolidated Engineering Co Inc
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Filing: 1939-07-26
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Granted: 1942-03-17
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Expires: 1959-07-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Herbert Hoover
- 👤 Hugh C Schaeffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:08
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/42; G01V1/28; G01V1/36; G01V1/362; G01V2210/00; G01V2210/50; G01V2210/53
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-03-16 | 1945-09-15 | 1946-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-03-16 | 1949-09-15 | 1950-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-03-16 | 1953-09-15 | 1954-03-17 | $7700.00 | Window Closed / Lapsed |