US3019565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine
Assignee: Heald Machine Co
•
Filing: 1959-09-04
•
Granted: 1962-02-06
•
Expires: 1979-09-04
Abstract
No abstract record available.
Inventors
- 👤 Robert G Hatstat
- 👤 George H Lockwood
- 👤 William D Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:17
CPC Classifications
B; B24; B24B; B24B49/00; B24B49/02; B24B49/04; B24B49/045; B24B5/00; B24B5/02; B24B5/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1891662A
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US1982161A
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US2001447A
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US2019066A
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US1993830A
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US2248172A
Cited
US2280692A
Cited
US2275141A
Cited
US2382215A
Cited
US2603043A
Cited
US2812623A
Cited
US2751720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |