US3439456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Faceting machine
Assignee: ROY W BAILEY
•
Filing: 1966-01-21
•
Granted: 1969-04-22
•
Expires: 1986-01-21
Abstract
No abstract record available.
Inventors
- 👤 Roy W Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:54
CPC Classifications
B; B24; B24B; B24B9/00; B24B9/02; B24B9/06; B24B9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US374743A
Cited
US1047532A
Cited
US1153673A
Cited
US1838423A
Cited
US2779138A
Cited
US3098327A
Cited
US3135073A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |