Patent US2845852A successfully refreshed from Google Patents.
US2845852A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1954-10-28
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Granted: 1958-08-05
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Expires: 1974-10-28
Abstract
No abstract record available.
Inventors
- 👤 Maynard L Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:16
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/02; G03D13/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2506401A
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US2405233A
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US2458699A
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US2519682A
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US2559681A
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US2489892A
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Cited
US2617339A
Cited
US2753779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |