US3276988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic removal of work material
Assignee: Anocut Engineering Co
•
Filing: 1959-10-06
•
Granted: 1966-10-04
•
Expires: 1979-10-06
Abstract
No abstract record available.
Inventors
- 👤 Lynn A Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:14
CPC Classifications
B; B23; B23H; B23H3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189918643A
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GB335003A
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US2080234A
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US2146924A
Cited
GB493108A
Cited
US2476286A
Cited
US2457510A
Cited
US2848401A
Cited
US2905605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |