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Patent US2392556A successfully refreshed from Google Patents.
US2392556A
Expired / Lapsed
US
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Adjusting pitch of screws
Assignee: Individual
•
Filing: 1940-01-30
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Granted: 1946-01-08
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Expires: 1960-01-30
Abstract
No abstract record available.
Inventors
- 👤 Seppeler Eduard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:53
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/30; B64C11/32; B64C11/36; B63; B63H; B63H3/00; B63H3/02; B63H3/06; B63H5/00; B63H5/07; B63H5/08; B63H5/10; B64C11/306
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) | 1949-01-07 | 1949-07-09 | 1950-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-01-07 | 1953-07-09 | 1954-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-01-07 | 1957-07-09 | 1958-01-08 | $7700.00 | Window Closed / Lapsed |