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US2438758A
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Assignee: ROLAND J MILLER
•
Filing: 1943-12-29
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Granted: 1948-03-30
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Expires: 1963-12-29
Abstract
No abstract record available.
Inventors
- 👤 Charles C Leach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:38
CPC Classifications
G; G01; G01C; G01C5/00; G01C5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US318885A
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US397294A
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DE364591C
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US872183A
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US986109A
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US1375278A
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US1907402A
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DE635090C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-30 | 1951-09-29 | 1952-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-30 | 1955-09-29 | 1956-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-30 | 1959-09-29 | 1960-03-30 | $7700.00 | Window Closed / Lapsed |