Patent US2224520A successfully refreshed from Google Patents.
US2224520A
Expired / Lapsed
US
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Coating and filling material
Assignee: A M Meincke & Son Inc
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Filing: 1939-07-29
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Granted: 1940-12-10
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Expires: 1959-07-29
Abstract
No abstract record available.
Inventors
- 👤 Howard D Meincke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:43
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/38; D21H19/40; D21H17/00; D21H17/63; D21H17/66; D21H17/67; D21H17/68; D21H19/44; D21H19/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-12-10 | 1944-06-10 | 1944-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-10 | 1948-06-10 | 1948-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-10 | 1952-06-10 | 1952-12-10 | $7700.00 | Window Closed / Lapsed |