US2607351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Notebook
Assignee: Individual
•
Filing: 1947-08-13
•
Granted: 1952-08-19
•
Expires: 1967-08-13
Abstract
No abstract record available.
Inventors
- 👤 Charles F Allison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:03
CPC Classifications
B; B42; B42D; B42D5/00; B42D5/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US175328A
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US594203A
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US631771A
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GB190322237A
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US884134A
Cited
US964189A
Cited
GB190927333A
Cited
US986911A
Cited
US1156160A
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US1129891A
Cited
US2242737A
Cited
GB590109A
Cited
US2521296A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |