US2421928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold and method of molding
Assignee: Maryland Plastics Inc
•
Filing: 1944-10-05
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Granted: 1947-06-10
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Expires: 1964-10-05
Abstract
No abstract record available.
Inventors
- 👤 Samuel R Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:46
CPC Classifications
B; B29; B29D; B29D19/00; B29D19/04; B29C; B29C33/00; B29C33/0033; B29C37/00; B29C37/0003; B29C43/00; B29L; B29L2019/00; Y; Y10; Y10S; Y10S264/00; Y10S264/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US168863A
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US313399A
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US2087470A
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US2084427A
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US2133906A
Cited
US2186160A
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US2217661A
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US2371061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-09 | 1950-12-09 | 1951-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-09 | 1954-12-09 | 1955-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-09 | 1958-12-09 | 1959-06-10 | $7700.00 | Window Closed / Lapsed |