US2690089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming screw threads
Assignee: EMMA G BEDKER
•
Filing: 1946-09-03
•
Granted: 1954-09-28
•
Expires: 1966-09-03
Abstract
No abstract record available.
Inventors
- 👤 Leo W Bedker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:52
CPC Classifications
B; B21; B21H; B21H3/00; B21H3/02; B21H3/04; B21H3/042; B21H3/048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US248167A
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US1085643A
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US1145661A
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US2054182A
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US2204182A
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US2218574A
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US2349863A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |