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US2528790A
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Assignee: Individual
•
Filing: 1947-03-29
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Granted: 1950-11-07
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Expires: 1967-03-29
Abstract
No abstract record available.
Inventors
- 👤 Lester G Scherer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:01
CPC Classifications
G; G06; G06M; G06M1/00; G06M1/08; G06M1/10; G06M3/00; G06M3/14; G07; G07F; G07F17/00; G07F17/14; G07F17/145; Y; Y10; Y10S; Y10S194/00; Y10S194/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2094216A
Cited
DE378945C
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US1410292A
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US1773718A
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US2015607A
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US2077767A
Cited
US2073834A
Cited
US2421774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |