Patent US2945436A successfully refreshed from Google Patents.
US2945436A
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US
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Assignee: VAN BUSKIRK AND CO Inc
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Filing: 1956-07-06
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Granted: 1960-07-19
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Expires: 1976-07-06
Abstract
No abstract record available.
Inventors
- 👤 John D Van Buskirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:09
CPC Classifications
B; B41; B41F; B41F31/00; B41F31/02; B41F17/00; B41F17/24; B41F17/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2655103A
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US1024552A
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US1900030A
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US2333172A
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US2282158A
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US2684028A
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US2788740A
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US2746380A
Cited
US2818016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |