US2941304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helical thread gauging rolls
Assignee: Individual
•
Filing: 1956-07-27
•
Granted: 1960-06-21
•
Expires: 1976-07-27
Abstract
No abstract record available.
Inventors
- 👤 Alexander M Man
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:31
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/20; G01B3/38; G01B3/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1271187A
Cited
US1339573A
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US1925346A
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US1986729A
Cited
US2358264A
Cited
US2555964A
Cited
DE812487C
Cited
DE867930C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |