Patent US2903138A successfully refreshed from Google Patents.
US2903138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool holder
Assignee: Individual
•
Filing: 1955-05-09
•
Granted: 1959-09-08
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Expires: 1975-05-09
Abstract
No abstract record available.
Inventors
- 👤 Barnett C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:28
CPC Classifications
B; B25; B25H; B25H3/00; B25H3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734638A
Cited
US1063961A
Cited
US2035639A
Cited
US2210235A
Cited
US2308832A
Cited
US2666609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |