Patent EP0668680A1 successfully refreshed from Google Patents.
US1474924A
Expired / Lapsed
US
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Rule-form machine
Assignee: RULE FORM MACHINE Co
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Filing: 1921-10-28
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Granted: 1923-11-20
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Expires: 1941-10-28
Abstract
No abstract record available.
Inventors
- 👤 Appelquist Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:44
CPC Classifications
B; B23; B23C; B23C3/00; B23C3/28; B23C3/34; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30784; Y10T409/307896
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) | 1926-11-19 | 1927-05-21 | 1927-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-11-19 | 1931-05-21 | 1931-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-11-19 | 1935-05-21 | 1935-11-20 | $7700.00 | Window Closed / Lapsed |