Patent US2272381A successfully refreshed from Google Patents.
US2475698A
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Memorandum pad
Assignee: Individual
•
Filing: 1945-08-28
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Granted: 1949-07-12
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Expires: 1965-08-28
Abstract
No abstract record available.
Inventors
- 👤 Croker Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:22
CPC Classifications
B; B43; B43L; B43L1/00; B43L1/12; B43L1/123; B43L1/126; B42; B42D; B42D9/00; B42D9/001; B42D9/004; B42D9/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1008481A
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US1455579A
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US1540777A
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US1631192A
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US1512827A
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US1543430A
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US1568548A
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US1757287A
Cited
US1729916A
Cited
US2333597A
Cited
US2367608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-11 | 1953-01-10 | 1953-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-11 | 1957-01-10 | 1957-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-11 | 1961-01-10 | 1961-07-12 | $7700.00 | Window Closed / Lapsed |