Patent US2217973A successfully refreshed from Google Patents.
US2217973A
Expired / Lapsed
US
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Machine tool
Assignee: Ex-Cell-O Corp
•
Filing: 1938-03-15
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Granted: 1940-10-15
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Expires: 1958-03-15
Abstract
No abstract record available.
Inventors
- 👤 Ira J Snader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:23
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/0009; B23Q1/0018; B23Q1/0027; B23Q41/00; Y; Y10; Y10S; Y10S82/00; Y10S82/901; Y10T; Y10T29/00; Y10T29/51; Y10T29/519; Y10T29/53; Y10T29/534; Y10T29/53404; Y10T409/00; Y10T409/30; Y10T409/306216; Y10T409/306664
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-10-15 | 1944-04-15 | 1944-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-10-15 | 1948-04-15 | 1948-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-10-15 | 1952-04-15 | 1952-10-15 | $7700.00 | Window Closed / Lapsed |