US2805727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of etermining geological features
Assignee: Individual
•
Filing: 1952-07-05
•
Granted: 1957-09-10
•
Expires: 1972-07-05
Abstract
No abstract record available.
Inventors
- 👤 Willis O Bazhaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:01
CPC Classifications
G; G01; G01V; G01V11/00; G01V1/00; G01V1/40; G01V1/42; G01V3/00; G01V3/18; G01V3/26; G01V3/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2276335A
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US2276306A
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US2354659A
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US2503904A
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US2557714A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |