US3492894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine tool
Assignee: Heald Machine Co
•
Filing: 1967-10-02
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Granted: 1970-02-03
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Expires: 1987-10-02
Abstract
No abstract record available.
Inventors
- 👤 Robert S Hahn
- 👤 Thomas R Keefe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:39
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/03; B23B29/034; B23B29/03432; B23B29/03457; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/34; G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/402; G05B19/404; B23B2260/00; B23B2260/108; G05B2219/00; G05B2219/30; G05B2219/37; G05B2219/37345; G05B2219/41; G05B2219/41122; G05B2219/41352; G05B2219/49; G05B2219/49177; G05B2219/50; G05B2219/50293; Y; Y10; Y10T; Y10T408/00; Y10T408/16; Y10T408/175
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |