Patent US2838932A successfully refreshed from Google Patents.
US2838932A
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US
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Assignee: F W DWYER Manufacturing CO
•
Filing: 1954-02-10
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Granted: 1958-06-17
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Expires: 1974-02-10
Abstract
No abstract record available.
Inventors
- 👤 James G Dwyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:03
CPC Classifications
G; G01; G01P; G01P5/00; G01P5/14; G01P5/16; G01P13/00; G01P13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2042700A
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US2586010A
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US2628807A
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US2719739A
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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) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |