Patent US2602397A successfully refreshed from Google Patents.
US2602397A
Expired / Lapsed
US
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Manufacture of type wheels
Assignee: International Business Machines Corp
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Filing: 1949-12-03
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Granted: 1952-07-08
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Expires: 1969-12-03
Abstract
No abstract record available.
Inventors
- 👤 Last James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:21
CPC Classifications
B; B21; B21H; B21H8/00; B21H8/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1374225A
Cited
US2038759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |