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US2502190A
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Assignee: GEORGENE P WASSELL
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Filing: 1944-10-07
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Granted: 1950-03-28
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Expires: 1964-10-07
Abstract
No abstract record available.
Inventors
- 👤 Wassell Frank Lloyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:22
CPC Classifications
B; B42; B42F; B42F19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1530012A
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US1589225A
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GB299629A
Cited
US1794444A
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US2005977A
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US1975662A
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DE618564C
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US2122223A
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US2296244A
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US2370074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-27 | 1953-09-26 | 1954-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-27 | 1957-09-26 | 1958-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-27 | 1961-09-26 | 1962-03-28 | $7700.00 | Window Closed / Lapsed |