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Patent US3084923A successfully refreshed from Google Patents.
US3084923A
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Circle cutting attachment
Assignee: Union Carbide Corp
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Filing: 1959-04-03
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Granted: 1963-04-09
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Expires: 1979-04-03
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Arnault
- 👤 Alfred J Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:04
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/48; B23Q1/4804; B23K; B23K7/00; B23K7/10; B23K7/105; B23K7/107; B23Q35/00; B23Q35/04; B23Q35/24; B23Q35/38; B23Q35/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |