US2421935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Die
Assignee: Individual
•
Filing: 1944-04-17
•
Granted: 1947-06-10
•
Expires: 1964-04-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph H Gosnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:34
CPC Classifications
B; B31; B31D; B31D5/00; B31D5/02; B31B; B31B70/00; B31D5/0086; B31B2160/00; B31B2160/10; B31B50/00; B31B50/59; B31B50/592
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US210784A
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US279118A
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US284440A
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US411156A
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US859977A
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US857123A
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US1189823A
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US1522978A
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US1774809A
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US2158312A
Cited
US2353253A
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 |