US2850924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making matched sets of punches and dies for stencil cutting machines
Assignee: Marsh Stencil Machine Co
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Filing: 1955-05-09
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Granted: 1958-09-09
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Expires: 1975-05-09
Abstract
No abstract record available.
Inventors
- 👤 Herbert W Hempel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:35
CPC Classifications
B; B22; B22C; B22C9/00; B22C9/06; Y; Y10; Y10T; Y10T83/00; Y10T83/929; Y10T83/9411; Y10T83/9423; Y10T83/9425
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US369955A
Cited
US1883335A
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US2397168A
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US2384229A
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US2611435A
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US2627313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |