US3207241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet bits
Assignee: SMITH TOOL CO
•
Filing: 1963-04-08
•
Granted: 1965-09-21
•
Expires: 1983-04-08
Abstract
No abstract record available.
Inventors
- 👤 William J Neilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:49
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/08; E21B10/18; E21B7/00; E21B7/04; E21B7/06; E21B7/065; E21B7/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3104726A
Cited
US1121573A
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US2066671A
Cited
US2335929A
Cited
US2754091A
Cited
US2901223A
Cited
US2873092A
Cited
US3113630A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |