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US2933989A
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Assignee: Individual
•
Filing: 1955-11-25
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Granted: 1960-04-26
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Expires: 1975-11-25
Abstract
No abstract record available.
Inventors
- 👤 D Adrian Vincent L Duval
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:27
CPC Classifications
C; C09; C09D; C09D101/00; C09D101/08; C09D101/26; C09D101/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1729834A
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US1925921A
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US2186454A
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US2297709A
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US2268538A
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US2311609A
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US2393525A
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US2379702A
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US2413011A
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US2354049A
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US2574971A
Cited
US2694027A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |