US2558616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact marking device
Assignee: International Business Machines Corp
•
Filing: 1947-11-24
•
Granted: 1951-06-26
•
Expires: 1967-11-24
Abstract
No abstract record available.
Inventors
- 👤 Reynold B Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:19
CPC Classifications
B; B44; B44B; B44B5/00; B44B5/0061; B44B5/02; B44B5/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB118698A
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US1289539A
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US1425357A
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US1555527A
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US1593287A
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US1653765A
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US1993461A
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US2073154A
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US2102689A
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US2232528A
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US2388944A
Cited
US2427358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |