US2731087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Code key cutting machine
Assignee: HOWARD FREEDMAN
•
Filing: 1950-10-14
•
Granted: 1956-01-17
•
Expires: 1970-10-14
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:23
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/005; B21; B21D; B21D53/00; B21D53/38; B21D53/42; Y; Y10; Y10S; Y10S83/00; Y10S83/917; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/300952; Y10T409/301008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US420729A
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US894726A
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US1458217A
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US1615020A
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US1995798A
Cited
US2129087A
Cited
US2129883A
Cited
US2114597A
Cited
US2338940A
Cited
US2626663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |