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US2535770A
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Assignee: PARAGON REVOLUTE Corp
•
Filing: 1948-02-21
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Granted: 1950-12-26
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Expires: 1968-02-21
Abstract
No abstract record available.
Inventors
- 👤 Frederick G Wilde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:09
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1895887A
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US1966547A
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US2063296A
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US2041478A
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US2093785A
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US2308130A
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US2339906A
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US2297587A
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US2311849A
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US2270578A
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US2346988A
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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) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |