US2994995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed wheelhead
Assignee: Heald Machine Co
•
Filing: 1959-05-27
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Granted: 1961-08-08
•
Expires: 1979-05-27
Abstract
No abstract record available.
Inventors
- 👤 Rolland C Griffith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:25
CPC Classifications
B; B24; B24B; B24B41/00; B24B41/002; F; F16; F16F; F16F15/00; F16F15/02; F16F15/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1682216A
Cited
FR494356A
Cited
US1470164A
Cited
US1695759A
Cited
US1559245A
Cited
US1762658A
Cited
US2232340A
Cited
US2641970A
Cited
US2715806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |